Metal Face Seals v3[1]

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Introduction Caterpillar Precision Seals (CPS) is the leading manufacturer of metal face seals. Metal face seals address difficult sealing applications - applications where radial-lip type elastomeric seals would fail. During the late 1950's, manufacturers of earth-moving equipment needed a new type of seal to improve lubricant retention on undercarriage components immersed in hostile, abrasive, and corrosive environments where elastomeric shaft seals quickly wore out. Two new seal designs were created which permanently sealed the undercarriage components. These are referred to as “Metal Face Seals”. Developed for protection of equipment working in the most adverse conditions...mud, rock, sand, and water...desert heat and arctic cold, metal face seals provide lubricant retention and exclude contaminates in all applications. Forty years of experience across all types of conditions have proven a long service life with low maintenance and superior protection for your products. CPS offers two types of metal face seals - DuoCone and DF (Heavy Duty Dual Face). Both seal designs use elastomeric load rings to provide loading for the metal component. Both designs use the contact area between the metal sealing rings to create a static and dynamic seal. The difference between the seal designs lies primarily in the shape of the elastomeric load rings. Duo-Cone seals incorporate a round toric ring while HDDF seals use a Belleville Washer. The Duo-Cone seal trades additional housing preparation for a larger end-play capability versus the HDDF style seal. Product Protection Metal face seals provide positive protection for bearings and lubricants in abrasive, moderate-speed applications. They permit the use of oil as a lubricant instead of grease. With oil, friction loss is reduced and service life is extended. In many applications, the lubricant installed at the factory is permanent with no periodic lubrication or adjustment necessary.

Design The design of a Caterpillar metal face seal compensates for many manufacturing and operating variables. Two metal sealing rings float in position; two elastomeric load rings exert uniform pressure to accurately position the metal rings and serve as the static seal between the housing and the seal ring. The load rings also transmits the turning torque from the drive housing to the seal ring. Positive sealing contact is provided regardless of assembly tolerance stack up, shaft deflection, axial endplay, eccentricity, or vibration. Metal Face Seal Features - Corrosion-resistant seal rings - Precision lapped, self-renewing sealing surfaces - Minimum face load variations - Special seal and load ring materials to match application requirements Rotating speed, lubrication, temperature, and differential pressure are factors to consider when determining seal face loads. Metal face seals provide good performance across a wide range of face loads, therefore, compensating for considerable assembly tolerance buildup, misalignment, and wear. Recommended Operating Conditions Temperature -57o to 190oC

(-70o to 375oF) Maximum Rubbing Speed

Up to 230mpm* (750fpm)

Internal Operating Pressure

240 to 345 kPa* (35 to 50psi)

*Where continuous operation is required, speeds may be limited to 107mpm and pressure maximum to 240 KPa Long Life Extensive laboratory and field testing has confirmed metal face seals perform much longer than soft face seals and radial lip elastomeric seals. Used for years by manufacturers of heavy construction equipment, these seals have demonstrated outstanding performance properties, having reached over 15,000 hours of operation without maintenance, in some applications. As wear occurs, lapped metal seal faces are automatically and continually renewed. A visual check for the polished sealing band shows how much life remains.

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Reusable The reliable metal face seal can be removed and reinstalled for continued reliable performance. The load rings are serviced separately to allow replacement of the loading member, providing like new performance. This reusability helps minimize component overhaul costs. Problem Solver The high cost of equipment downtime requires the best available seal. The Caterpillar metal face seal provides superior performance in extreme applications where positive lubricant retention and the ability to keep out damaging and/or abrasive materials are essential. OEM customers have discovered the benefits offered by metal face seals often reduce production costs and provide increased value to the end user. Construction, mining, petrochemical, paper, agriculture, sewage treatment and landfill applications are all examples where this seal improved bearing protection and overall performance. CPS Application Engineering The engineers of Caterpillar can analyze your sealing requirements, recommend the metal face seal that would best meet your needs, work with your engineers to design the installation and even provide electronic drawing to aid in your design. You need only supply drawings of the seal area and pertinent data concerning the operating environment.

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Product Design Review Seal Ring Materials CPS offers the widest choice of seal ring material options in the industry. The materials have been customized to match different applications in which metal face seals have been utilized. For further information on any seal ring material listed below, please consult CPS. Shown in the table below is a general comparison between seal ring materials available. C6 Stellite NiHard Formed Forged Material Ni-Alloy Fe-Alloy Fe-Alloy SAE 1074 SAE 52100 Process Cast Cast Cast Stamped Forged Cost High Medium Medium Low Low Wear Life High High Medium/High Low Low Corrosion Resistance High Medium/High Low/Medium Medium Low Scoring Resistance High Medium Medium/High Medium/High Medium

C6 Casting Alloy C6 was developed for applications in which high speed scoring or galling of the seal faces is a problem. This alloy offers greater velocity capabilities over the stellite alloy. C6 is a cast nickel base material with a high alloy content formulated to provide high scoring, wear, and corrosion resistance. The C6 alloy is available only from CPS. It is the material of choice around the world in large diameter wheel applications such as mining trucks and wheel loaders. Stellite Casting Alloy Stellite has been designed for the harshest operating environments where abrasive and corrosive elements are present. Stellite's formulation is iron based with a high alloy content designed to provide maximum wear and corrosion resistance. Stellite cast seals should be specified for applications frequently exposed to abrasive and corrosive conditions with moderate rotational speeds (up to 150mpm/490fpm maximum). Typical applications include crawler tractor final drives and various undercarriage applications. NiHard Casting Alloy NiHard is another iron based casting alloy offered by CPS. It is used in applications similar to those served by stellite. P/V characteristics are slightly greater than stellite, but wear life and corrosion resistance have shown to be less, in tests conducted by CPS. Typical applications would include undercarriage and final drive applications where wear resistance is required, corrosion resistance is not essential, but seal surface speeds prohibit the use of stellite. Formed Steel Material Formed seals were developed for applications that do not require the high level of corrosion and abrasion resistance offered by cast alloy designs, but the improved performance of a face seal is desired. Formed seals are used extensively in axle, winch, and final drive applications. Formed seals are interchangeable with cast seals and provide similar load and speed capability as the stellite seals but at a significantly lower cost. Forged Steel Material 52100 forged seals are available on a limited basis from CPS. These seals have been used successfully on some undercarriage applications where minor wear is present and seal cost is critical. 52100 has inferior corrosion resistance as compared to other seal materials offered by CPS. Please consult CPS for additional details. Specialty Materials CPS can design and fabricate seals from other specialty materials on an as-requested basis. We have experience making seals from a number of stainless steel alloys. Please talk directly with CPS if you need a seal tailored to your unique application.

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Load Ring Materials Several load ring materials are available to meet a variety of application requirements. The most common materials are nitrile and silicone. Viton and highly saturated nitrile (HNBR) are available for more specialized applications. The table listed below gives a brief comparison between available load ring options. Nitrile LT Nitrile Silicone HNBR Viton Low T Limit(oC) -25 -50 -60 -40 -10 High T Limit(oC) 100 105 165 135 190 Tear Resistance Good Good Poor Good Good Abrasion Resistance Excellent Excellent Poor Excellent Good Oil Resistance Excellent Excellent Poor Excellent Excellent Water Resistance Excellent Excellent Excellent Excellent Fair Cost Low Low Medium Medium High

Nitrile Nitrile is recommended for temperatures ranging from -25oC to 100oC (-13oF to 212oF) continuous and is compatible with most mineral based lubricant oil. Nitrile load rings offer the maximum resistance to abrasion. It is the most common load ring material choice and is used in most standard axle, final drive, and undercarriage applications. LT Nitrile (Low Temperature) Low temperature nitrile is recommended for temperatures ranging from –50oC to 100oC (-58oF to 212oF). Low temperature nitrile was specifically developed for highly abrasive, low temperature applications. Typical applications include undercarriage idlers, rollers and final drives. Silicone Silicone is recommended for temperatures ranging from -60oC to 165oC (-76oF to 330oF) continuous. It is not compatible with fuels or certain types of gear lubricants. Silicone also has inferior abrasion resistance to nitrile. Typically, silicone uses are: extreme high (wet disc brake systems) or extreme low (arctic environment) temperature applications. HNBR (Hydrogenated Nitrile) HNBR is a nitrile-based material recommended for temperature ranging from -40oC to 135oC (-40oF to 275oF). It has very similar abrasion resistance characteristics to standard nitrile, but HNBR has better resistance to compression set (permanent deformation) when exposed to high temperatures for extended periods of time. Viton Viton is a fluoroelastomer. It has a recommended temperature range between -10oC to 190oC (14oF to 375oF). Viton is typically used in steel mill type applications where extremely high temperatures are a concern and low temperatures are never a problem. Viton has very poor low temperature capability and will harden at temperatures approaching freezing.

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Seal Group Size (Class) Options Seals are available in various radial cross sections with toric sections from 4.30 to 16.00mm (0.170 to 0.630”). Always specify the largest toric/seal group section that can be accommodated in the housing design envelope. Larger section torics will accommodate greater deflection and are less sensitive to tolerances and environmental effects. The table shown below gives a brief summary of available design options.

Class Toric Size (mm)

Seal Ramp Angle (o)

Housing Ramp Angle (o)

Application

A 4.30 20 15 Specialized B 6.22 15 10 Small Axles and Wheels C 9.47 8/15/20 10 Undercarriage D 12.70 8/15/20 10 Large Axles, Wheels, Final Drives L 16.00 15 10 Large Wheels

DF DF Load Ring Square Bore Square Bore All Applications Class A - 4.30mm (0.17") Toric Cross Section

Duo-Cone seals utilizing the 4.30mm cross-section toric ring have very limited applications. They are used only in small diameter applications with extreme axial and radial constraints. Seals of this type have very little end play capability. This type of seal is not recommended for most applications.

Class B - 6.22mm (0.24") Toric Cross Section

Duo-Cone seals with 6.30mm cross-section toric rings are typically used in small axle or rock bit applications. They are used where sealing is needed in extreme environments, but where there is insufficient space to put a larger (and more typical) cross section Duo-Cone seal. While these seals do have some endplay capability, they have less than seals utilizing larger cross section load rings.

Class C - 9.47mm (0.37") Toric Cross Section 9.47mm cross-section Duo-Cone seals range in diameter from 82.5 to 199.0mm (3.248 to 7.835“). They are typically used in moving undercarriages for crawler tractor and excavator applications. These seals have good endplay capability. Seals are available with 8o, 15o, and 20o seal ramps to serve different operating environments. Class D - 12.70mm (0.50") Toric Cross Section This style Duo-Cone seal is very common in axle, wheel, and final drive applications in construction and earth moving equipment. Seals are available from 171.7 to 865.0mm (6.760 to 34.055”) in diameter. These seals have very good end play capability. Seals are available with both 8o and 15o seal ramps for optimized performance in your application.

Class L - 16.00mm (0.63") Toric Cross Section Currently, the largest cross section toric ring offered by CPS, the 16.00mm cross section diameter Duo-Cone seal is specified for only the largest of sealing applications. CPS offers sizes ranging from 480.0 to 939.8mm (18.898 to 37.000 inch) in diameter. It has very good end play capability, but requires the largest sealing cavity design in the Duo-Cone seal family Heavy Duty DF Square Bore

The Heavy Duty DF seal utilizes a square bore housing design and a Belleville washer load ring to provide loads to the metal seal faces. This seal design in available in sizes ranging from 61.6 to 780.2mm (2.425 to 30.716 inch) in diameter. Functionally, it is completely interchangeable with the Duo-Cone seal. Because of the design, there is no rolling of the loading member as is the case with the Duo-Cone seal. Bonding of the load ring to the metal sealing ring is possible to provide greater resistance of load ring slippage in application. This

seal type is used in a wide variety of products, including undercarriage, axles, final drives, gear boxes, wheels, etc.

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Duo-Cone Seal Ramp Angles A unique feature of Caterpillar Duo-Cone seals is the changing of sealing ramp angles to tailor the seal to various operating environments. Below is a brief summary of the purpose of various ramp angles. 8o Seal Ramp Duo-Cone seals with 8o seal ramps were originally developed for applications that are exposed to high-pressure differentials. This design offers a more uniform load profile over its operational face gap range. Some applications cause the torics to force down the ring ramp due to external pressure, debris packing, or vibration. This can cause sudden decay of the face load and sealing integrity. The 8o design offers increased toric retention and a more uniform face load profile. Available in both cast alloy and formed steel designs, these seals are interchangeable with conventional design Duo-Cone seals. 15o Seal Ramp The 15o Duo-Cone seal is the most common design offered by Caterpillar. This sealing design offers resistance to internal operating pressure and an ability to achieve higher sealing face loads than those available with the 8o seals. This design is most commonly used in final drive, axle, and wheel applications. 20o Seal Ramp Similar to the 15o seal design in that it resists internal pressures. The 20o design produces higher face loads than either the 8o or 15o design. It is commonly used in undercarriage applications.

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Design Information Load Deflection The typical load/deflection chart for a Duo-Cone Seal illustrates the flat curve developed by its design…these seals work satisfactorily over a wide range of the curve. DF seals have different loading characteristics than Duo-Cone Seals and must be run at different loads to provide satisfactory performance. Load deflection characteristics vary by metal face seal type, load ring material and seal group size. CPS engineering should be consulted for design assistance concerning proper loading of metal face seals. Pressure Velocity Metal face seal performance capability can be described by its Pressure-Velocity (PV) or load-speed rating. The face load required to keep the metal seal rings in contact is related to the allowable speed, as described by the following chart. Many factors influence this relationship, including seal ring material, seal ring diameter, operating temperature, lubricant viscosity, differential pressure across the load rings and action of centrifugal force on the load ring.

In low speed applications or with light lubricants, face pressures are generally increased to insure sealability. The same is true when seals are exposed to high differential pressures and/or large endplay or deflections. Lower face loads are specified for applications producing high peripheral speeds or high ambient temperatures. High speeds tend to centrifuge lubricant away from the seal face, and centrifugal forces tend to roll the torics up the seal ramp, increasing the face load. Both conditions contribute to scoring failures. Metal face seals have been used successfully to 456 mpm (1500 fpm). Consult Caterpillar Precision Seals when selecting face load to insure appropriate design target.

How Application Variables Affect Design Choices The selection of the proper metal face seal is contingent on a thorough application review. Differences in operating conditions have a significant impact on the optimum metal face seal for your product. Shown in the table below are significant application variables and the component of the metal face seal product they affect.

Variable Design Component Speed Metal Seal Ring Material

Internal/External Pressure Metal Seal Ring Material and Ramp Angle

External Operating Environment

Metal Seal Ring and Elastomer Load Ring

Material

Temperature Elastomer Load Ring Material

Available Space Metal Face Seal Type

End Play Metal Seal Type and Seal Ramp Angle

Seal Wear Measurement Cast metal face seals automatically compensate for wear. The mating faces form a contact band approximately 0.5 (0.02 in.) to 1.0 mm (0.04 in.) wide that retains the oil lubricant and seals out all foreign material. As wear occurs, the contact band will widen slightly and migrate inward until the inside diameter is reached. As depicted in the figure below, the cast seals wear down the spherical radius.

Remaining life can be easily estimated by visual inspection of the seal band location. Remaining wear life can be estimated based on a linear relationship of service hours and contact band position. Physical measurement of wear can be determined by measuring the distance between the sealing contact band and the inner diameter of the sealing

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ring. To calculate the wear life remaining on the seal, measure the distance between the seal inner diameter and the sealing contact band. If this distance is greater than 50% of the distance between the seal inner diameter and outer diameter, there is adequate seal life for this seal to be reused. Formed seals are more flexible than the cast rings they replace and, as a result, produce a wear pattern different than cast ring designs. Typically, formed seals wear in an axial rather than radial direction, as depicted below, due to their increased flexibility.

The total thickness of the flange is usable wear material on the formed seal rings, and good seal performance can generally be expected until the flange is completely worn away. Measuring the ring flange thickness and using the chart below can estimate remaining service life. Minimum flange thickness required for usability is 1.27mm (0.050 in.).

Formed Seal Wear Chart Flange Thickness

mm (inch) Seal Wear % Worn

1.91 (0.075) 0 1.59 (0.062) 25 1.27 (0.050) 50 0.95 (0.038) 75 0.64 (0.025) 100 0.32 (0.012) 125 0.00 (0.000) 150

With formed seal rings, the measured parameter used to check the remaining seal life is flange thickness at the outer edge. The measurement must be made carefully since the shoulder is only 1.52 mm (0.060 in.) from the edge of the flange. Estimates of expected seal life are difficult because there are many differences in machine applications, job conditions, maintenance and other factors that affect seal service life.

Lubricant Requirements Because the dynamic sealing surfaces are metal, lubricant is always required on the inside diameter of the seals. Oil lubricant should be used with all metal face seals. A detergent type SAE 10W-40 is the recommended lubricant type. However, other mineral base oils ranging from 10WT to 90WT are commonly used, depending on ambient temperature requirements. EP gear lubricants should be used with caution, as some EP additive packages are incompatible with silicone torics. (Contact Caterpillar Precision Seals for additional information.) In some slow rotating or oscillating applications, certain types of grease may be used, but mineral base oils are always preferred. Grease is not recommended in applications where the seal face surface speed exceeds 30.5 mpm(100.0 fpm). Oil not only provides lubrication to the sealing faces, but also serves to cool the seal rings. Lubricant must cover a minimum of one third of the sealing surface to properly lubricate and cool the rings. Metal face seals work best in clean, closed systems. To allow adequate volume for thermal expansion, closed cavities should not be filled more than 90% full. Maximum care should be taken to insure lube cavities are clean at assembly – free from dirt, scale and other foreign materials. Cleanliness levels of 500mg mass per square meter of surface area and a maximum particle size of 1.0mm (0.040 in.) should be maintained at assembly to provide maximum life.

Lubricant Viscosities for Ambient (Outside) Temperature Ranges

Oil Viscosity

oC min

oC max

oF min

oF max

SAE 10W -30 0 -22 +32 SAE 30W -20 +25 -4 +77 SAE 40W* -10 +40 +14 +104 SAE 50W 0 +50 +32 +122 SAE 80W90** -20 +40 -4 +104 SAE 85W140** -10 +50 +14 +122

* Commercially available CD/TD-2 oils that meets requirements ** EP gear lubricants should not be used with seals having silicone torics. Consult with Caterpillar Precision Seals before specifying an API GL-5 or MIL-L-2105C type lubricant. NOTE: Arctic Lubricants – For operation with ambient temperatures below –20oC (-4oF), use oils with base stocks that have low temperature flow capabilities. Use oils with a CD/TO-2 rating. If the application requires API GL-5 gear oil, use the EP synthetic gear lubricants that are available. Low temperature lubricants are not recommended for temperatures above 0oC (+32oF). When operating temperatures reach 0oC, the oil should be changed to one of the lubricants indicated above.

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Specialty Seals CPS not only offers “off-the-shelf” designs – our engineering team is also available to work with your engineers to design ‘non-standard’ metal face seals. Whether developing a new seal size or type to fit your application, or utilizing a new metal seal or load ring material, CPS engineers have the experience necessary to design, procure and test these concepts and follow them to production.

Duo-Cone vs. DF Product Comparison In most applications, either Duo-Cone or DF seals can be designed in. However, there are specific advantages to both designs. These should be considered when designing a metal face seal into your application. Duo-Cone Seal - Requires less room radially in application - Very stable in housing prior to final assembly - Very good endplay capability DF Seal - Requires less room axially in application - Lower tooling cost - Square bore housing cavity design - No assembly tool or lubricant required - Bonding of load ring possible

Functional Test Lab Capabilities Caterpillar Precision Seals has a fully operational functional test laboratory located at our facility in Franklin, North Carolina. CPS utilizes this lab for customer support and the development and validation of new seal designs. The lab equipment is designed to effectively simulate the operating variables that impact the performance of metal face seals. A number of different tests are available.

Sealability and Scoring Resistance (Pressure vs. Velocity Testing) Sealability tests evaluate the seal’s ability to operate under certain conditions. Scoring resistance tests are run to determine a metal seal ring material’s resistance to scoring/galling of the seal faces. The seal is assembled to match the operating conditions found in the application. This includes seal face loads, internal operating temperatures, internal operating pressures, rotational speeds, etc. Load (Load vs. Deflection) Testing Load deflection tests evaluate the loading characteristics of the elastomeric ring for a given size. This information is used to effectively determine the load ring compression required to obtain optimal loading on the metal seal faces. Wear (Mud Box) Tests Wear testing utilizes mud box equipment to evaluate a metal seal ring material’s resistance to abrasive wear. Seals are assembled, the seal cavity is filled with oil, and the seal exterior is exposed to mud slurry. Test cycles are run to accelerate the wear process. Wear is quantified by the amount of movement of the sealing band during the test. Oil Compatibility Testing (Compression Set, Heat Resistance, etc.) Oil compatibility tests can be run to evaluate the elastomeric load ring material’s compatibility with oils or greases that may be used in your application. A compression set test is the most common test run to evaluate these characteristics. Load ring specimens are compressed and held at a specific amount of compression while exposed to the oil and high temperatures for long periods of time. At the conclusion of the test, the amount of permanent set of the load ring materials is recorded. Quality Assurance CPS has a fully functional Quality Assurance laboratory. Equipment includes two Coordinate Measuring Machines (CMMs) for full dimensional analysis and an Instron tensile machine available for load measurements and state-of-the-art surface finish analysis, to name just a few.

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Product Failure Modes While metal face seals generally perform very satisfactorily, premature failure can occur for a number of reasons but can be avoided or minimized through proper seal design and/or installation. Uneven or Excessive Face Load This results from improper seal assembly. Either the seal ring is tilted in the assembly or the toric is twisted. Both result in uneven face loads circumferentially around the seal face. This can cause the seal rings to either separate, allowing oil to flow outward, or gall from localized high face load. Mishandling of Seals Mishandling of seals during assembly can cause immediate leaks or premature failure. Failure can occur due to cutting or tearing of the elastomeric load ring, breakage of the sealing ring, contamination of the seal face with dirt or lint, etc. When assembling metal face seals, please carefully observe assembly instructions provided by CPS. Internal Pressure Spikes Metal face seals can withstand a varying amount of internal pressure, depending on the design. Generally, internal pressure should be maintained below 1.0-1.7 Bar to guarantee satisfactory sealing performance. If your application exceeds these requirements, please consult CPS’s engineering staff for further information. Improper Housing Design It is critical that the application seal housing conform to the design information provided by CPS. The relationship between the seal assembly and its mating component is critical to the acceptable performance of the sealing system. Improper Use of Oil Selection of improper oil can cause premature failure due to degradation of both the elastomeric load ring and metal sealing ring. Some oils are incompatible with elastomers and cause long-term degradation with exposure, especially when combined with heat. Improper oil usage can cause metal seal failure due to scoring from inadequate lubrication flow.

Mud Packing Mud packing can be a problem in environments where the metal face seal is continually exposed to dirt and mud. Mud can pack the cavity between the seal housing, seal ring and load ring. Over time, this can cause the load ring to be pushed out of position, resulting improper face loads or mud being pumped past the load ring. Guarding arrangements are not highly recommended as they trap mud in. However, some are used for severe applications such as landfills. In this case, it is recommended that a slotted design be utilized. Load Ring Abrasion Abrasion of the load ring can occur in applications where it is exposed to abrasives such as dirt, sand and rocks. Abrasion of the load ring causes deterioration and tearing of the elastomer, leading to failure. This can be minimized through proper load ring material selection.

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Seal Assembly and Installation Guidelines for Duo-Cone Seals Duo-Cone Seal Assembly Contents: - (2) Metal Seal Rings - (2) Elastomeric Toric Rings Terminology

1. Seal Ring 5. Seal Ring Housing 2. Rubber Toric 6. Seal Ring Face 3. Housing Retainer Lip 7. Seal Ring Ramp 4. Housing Ramp 8. Seal Ring Retaining Lip

9. Installation Tool Housing Preparation The housing components that contact the rubber toric rings (3 and 4) must be free from foreign material (oil, grease, dirt, metal chips, dust or lint particles, etc) before installing the seal. This should be done using a lint-free wipe and a non-petroleum based solvent. Dry with a clean wipe. Remove any foreign material from the rubber torics (2), the ramps (7) and the lips (8) of both seal rings. This should also be done with a lint-free wipe and a non-petroleum based solvent. Dry with a clean wipe.

Place the rubber torics on the metal seal ring at the bottom of the seal ring ramp and against the retaining lip.

Make sure the rubber toric is straight on the seal ring and not twisted. Be careful not to nick or cut the torics during the assembly, as this can cause leaks. Put the installation tool onto the metal seal ring and rubber toric. Lightly dampen the lower half of the rubber toric with the appropriate assembly lubricant. Techniques to dampen the toric include wiping with a lint-free towel, lubricating using a clean foam brush, or dipping in a container lined with towels saturated in the assembly lubricant (as shown).

Seal groups with silicone torics can be assembled using a freezer to slightly contract the toric rings. Seal groups should be placed in a freezer for 5 minutes at -40o to -18oC prior to installation. Contraction will be sufficient to allow installation. Groups should warm to room temperature prior to further assembly. Approved Assembly Lubricants - Isopropyl Alcohol * - Houghto-Grind 60 CT - QuakerR Solvo Clean 68-RAH (*) All applicable safety and disposal guidelines for flammable liquids must be followed. Note: Do not use Stanosol or any other liquid that leaves an oil film does not evaporate quickly.

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Installation Process With the lower half of the rubber toric still wet, use the installation tool to position the seal ring and the rubber toric squarely against the application housing (as shown).

For smaller diameter seals, use sudden and even pressure to push the rubber toric under the retaining lip of the housing. For larger diameter seals, which will not press in with sudden and even pressure, it is acceptable to work the toric past the retaining lip by starting one side and tapping the opposite side of the installation tool with a rubber mallet until it is engaged past the retaining lip of the housing. Check the assembled height variation (A) in a least four places, 90o apart, use a caliper, toolmakers' ruler or any other calibrated measuring device.

The difference in height around the ring must not be more than 1.0mm. If small adjustments are necessary, do not push or pull directly on the seal ring. Use the installation tool to push down and your fingers to pull up uniformly on the rubber toric and seal ring. The rubber toric can twist if it is not wet all around during installation or if there are burrs or fins on the retaining lip of the housing. Twists, misalignment, and bulges of the toric (as shown) will result in seal failure. If correct installation is not obvious, remove the seal from the housing and repeat process.

The rubber torics must never slip on the ramps of either the seal ring or the housing. To prevent slippage, allow adequate evaporation time for the lubricant before proceeding with further assembly. Once correctly in place, the rubber toric must roll on the ramp only. The following shows incorrect installations resulting in cocked seals.

Wipe the face of each seal ring using a lint-free wipe. No particles of any kind are permissible on the sealing surfaces. (Even a hair can hold the seal faces apart and cause a leak.)

Apply a thin film of oil on the entire seal face of one or both seals using a lint-free applicator. Oil must not contact surfaces other than the sealing face.

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Final Assembly While completing the final assembly of the unit, make sure that both housings are in correct alignment and are concentric. Slowly bring the two housings together. High impact can scratch or break the seal components.

If the rubber toric slips at any location, it will twist, causing the seal rings to cock. Any wobbling motion of the seal is an indication of cocked seals and can cause dirt to enter by pumping mud past the torics. The following examples show the effects of a cocked seal group.

The above depicts how the torics have slipped instead of rolling on the left hand side of the seal. The following shows the same seal after the bottom half is rotated 180o.

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Installation Tools for Duo-Cone Seals

Seal Ring Toric Cross Section (mm) OD (mm) Ramp Angle

Installation Tool

4.30 87.60 20o Contact CPS 4.30 106.60 20o Contact CPS 6.22 104.78 15o 1U-8850 6.22 141.22 15o 1U-8699 6.22 156.97 15o 1U-8698 6.22 168.15 15o 1U-8697 6.22 222.50 15o 4C-9527 9.47 82.50 20o 1U-8843 9.47 92.00 8o 136-6813 9.47 92.00 20o 1U-8840 9.47 102.00 8o 137-9443 9.47 109.52 8o 129-1340 9.47 109.52 20o 1U-8841 9.47 119.08 8o 1U-8842 9.47 119.08 20o 1U-8842 9.47 146.05 8o 1U-8849 9.47 146.05 15o 1U-8849 9.47 146.05 20o 1U-8849 9.47 171.50 20o 4C-6206

12.70 171.70 15o 1U-6443 12.70 191.26 8o 1U-6442 12.70 191.26 15o 1U-6441 12.70 210.31 8o 1U-6440 12.70 210.31 15o 1U-6439 12.70 251.46 8o 1U-6437 12.70 251.46 15o 1U-6436 12.70 259.59 15o 1U-6438 12.70 292.86 8o 1U-6435 12.70 292.86 15o 1U-6434 12.70 310.86 15o FT-2594 12.70 328.00 15o 126-3994 12.70 346.46 8o 1U-5934 12.70 346.46 15o 1U-5933 12.70 394.46 8o 8T-7789 12.70 394.46 15o 8T-9206 12.70 457.20 8o 176-1724 12.70 457.20 15o 8T-0531 12.70 533.40 15o 140-7642 12.70 567.94 15o 9U-5691 12.70 700.00 15o 4C-6582 12.70 865.00 15o 4C-4907 16.00 480.00 15o Contact CPS 16.00 939.80 15o 149-0974

Duo-Cone Seals

Part No RingOD

Min Ring ID

Max Shaft Diameter

Ring Material

Toric Material

Angle "M" +/-

0.13

"N" +/-

0.13

"V" +/-

0.50

"O" +/-

0.20

"P" +/-

0.25

"Q" +/-

0.25

"R" Max

"S" +/-

0.50

"T" +/-

0.50

"W" Min

Class A

1Z-9354 87.6 76.5 75.9 Stellite Silicone 20 90.68 90.18 89.5 0.2 1.4 1.5 3.1 15 7.5 0

7G-0519 87.6 76.5 75.9 Stellite Nitrile 20 90.68 90.18 89.5 0.2 1.4 1.5 3.1 15 7.5 0

9P-9663 106.6 95.5 94.9 Stellite Nitrile 20 109.68 109.18 108.5 0.2 1.4 1.5 3.1 15 7.5 0

Class B

6S-3285 104.67 89 88.4 Stellite Nitrile 15 107.38 106.62 100.4 0.5 2.9 2.8 1.5 10 11.8 2.4

5P-0373 104.67 89 88.4 Stellite Silicone 15 107.38 106.62 100.4 0.5 2.9 2.8 1.5 10 11.8 2.4

186-2892 104.67 89 88.4 C-6 Nitrile 15 107.38 106.62 100.4 0.5 2.9 2.8 1.5 10 11.8 2.4

3S-0303 141.22 125.5 124.9 Stellite Nitrile 15 143.96 143.2 136.38 0.5 2.9 2.8 1.5 10 11.8 2.4

8L-5519 141.22 125.5 124.9 Stellite Silicone 15 143.96 143.2 136.38 0.5 2.9 2.8 1.5 10 11.8 2.4

5K-5288 157 141.3 140.7 Stellite Nitrile 15 159.71 158.95 152.13 0.5 2.9 2.8 1.5 10 11.8 2.4

5P-0375 157 141.3 140.7 Stellite Silicone 15 159.71 158.95 152.13 0.5 2.9 2.8 1.5 10 11.8 2.4

8L-5516 168.15 152.6 152 Stellite Silicone 15 171.01 170.25 164.03 0.5 2.9 2.8 1.5 10 11.8 2.4

168-6384 168.15 152.6 152 C-6 Nitrile 15 171.01 170.25 164.03 0.5 2.9 2.8 1.5 10 11.8 2.4

5K-1078 168.15 152.6 152 Stellite Nitrile 15 171.01 170.25 164.03 0.5 2.9 2.8 1.5 10 11.8 2.4

15

Part No RingOD

Min Ring ID

Max Shaft Diameter

Ring Material

Toric Material

Angle "M" +/-

0.13

"N" +/-

0.13

"V" +/-

0.50

"O" +/-

0.20

"P" +/-

0.25

"Q" +/-

0.25

"R" Max

"S" +/-

0.50

"T" +/-

0.50

"W" Min

5N-7639 222.5 207.6 207 Stellite Nitrile 15 224.93 224.17 217.95 0.5 2.9 2.8 1.5 10 11.8 2.4

3Q-5424 222.5 207.6 207 Stellite Silicone 15 224.93 224.17 217.95 0.5 2.9 2.8 1.5 10 11.8 2.4

177-6717 222.5 207.6 207 C-6 Nitrile 15 224.93 224.17 217.95 0.5 2.9 2.8 1.5 10 11.8 2.4

Class C

161-7247 77.5 57 56.4 Stellite LT Nitrile 8 81.44 80.68 68.44 0.5 3.5 4.8 2 10 15.2 1.6

171-5883 82.55 62.1 61.5 Stellite Various 20 86.48 85.72 73.48 0.5 3.5 4.8 2 10 15.2 1.6

5K-6191 82.55 62.1 61.5 Stellite Silicone 20 86.48 85.72 73.48 0.5 3.5 4.8 2 10 15.2 1.6

2M-2858 82.55 62.1 61.5 Stellite Nitrile 20 86.48 85.72 73.48 0.5 3.5 4.8 2 10 15.2 1.6

110-8882 92 71.6 71 Stellite Nitrile 8 95.94 95.18 83.01 0.5 3.5 4.8 2 10 15.2 1.6

162-7862 92 71.6 71 Stellite LT Nitrile 8 95.94 95.18 83.01 0.5 3.5 4.8 2 10 15.2 1.6

107-4889 92 71.6 71 Stellite Silicone 8 95.94 95.18 83.01 0.5 3.5 4.8 2 10 15.2 1.6

4S-8984 92.08 71.6 71 Stellite Silicone 20 96.01 95.25 83.01 0.5 3.5 4.8 2 10 15.2 1.6

175-7513 92.08 71.6 71 C-6 Nitrile 20 96.01 95.25 83.01 0.5 3.5 4.8 2 10 15.2 1.6

171-5882 92.08 71.6 71 Stellite LT Nitrile 20 96.01 95.25 83.01 0.5 3.5 4.8 2 10 15.2 1.6

1M-8747 92.08 71.6 71 Stellite Nitrile 20 96.01 95.25 83.01 0.5 3.5 4.8 2 10 15.2 1.6

162-7863 102 81.5 80.8 Stellite LT Nitrile 8 105.94 105.18 94.28 0.5 3.5 4.8 2 10 15.2 1.6

9W-8878 102 81.5 80.8 Stellite Silicone 8 105.94 105.18 94.28 0.5 3.5 4.8 2 10 15.2 1.6

125-3267 102 81.5 80.8 Stellite Nitrile 8 105.94 105.18 94.28 0.5 3.5 4.8 2 10 15.2 1.6

8S-5656 109.52 89.1 88.5 Stellite Silicone 20 113.46 112.7 100.46 0.5 3.5 4.8 2 10 15.2 1.6

125-3677 109.52 89.1 88.5 Stellite Nitrile 8 113.46 112.7 100.46 0.5 3.5 4.8 2 10 15.2 1.6

162-7864 109.52 89.1 88.5 Stellite LT Nitrile 8 113.46 112.7 100.46 0.5 3.5 4.8 2 10 15.2 1.6

1M-8746 109.52 89.1 88.5 Stellite Nitrile 20 113.46 112.7 100.46 0.5 3.5 4.8 2 10 15.2 1.6

107-9621 109.52 89.1 88.5 Stellite Silicone 8 113.46 112.7 100.46 0.5 3.5 4.8 2 10 15.2 1.6

3P-1848 119.08 98.6 98 Stellite Silicone 20 123.01 122.25 110.01 0.5 3.5 4.8 2 10 15.2 1.6

1M-8748 119.08 98.6 98 Stellite Nitrile 20 123.01 122.25 110.01 0.5 3.5 4.8 2 10 15.2 1.6

16

Part No RingOD

Min Ring ID

Max Shaft Diameter

Ring Material

Toric Material

Angle "M" +/-

0.13

"N" +/-

0.13

"V" +/-

0.50

"O" +/-

0.20

"P" +/-

0.25

"Q" +/-

0.25

"R" Max

"S" +/-

0.50

"T" +/-

0.50

"W" Min

155-9879 133.5 113 112.4 Stellite LT Nitrile 8 137.44 136.68 124.43 0.5 3.5 4.8 2 10 15.2 1.6

161-7525 133.5 113 112.4 Stellite Silicone 8 137.44 136.68 124.43 0.5 3.5 4.8 2 10 15.2 1.6

6Y-5219 146.05 125.6 125 Formed Nitrile 15 149.98 149.22 136.98 0.5 3.5 4.8 2 10 15.2 1.6

6Y-5218 146.05 125.6 125 Formed Silicone 15 149.98 149.22 136.98 0.5 3.5 4.8 2 10 15.2 1.6

1C-9319 146.05 125.6 125 Stellite Silicone 15 149.98 149.22 136.98 0.5 3.5 4.8 2 10 15.2 1.6

147-4474 146.05 125.6 125 Stellite Nitrile 20 149.98 149.22 136.98 0.5 3.5 4.8 2 10 15.2 1.6

5P-9121 146.05 125.6 125 Stellite Nitrile 15 149.98 149.22 136.98 0.5 3.5 4.8 2 10 15.2 1.6

Class D

6T-9984 171.7 142.7 141.5 Stellite Silicone 15 176.82 175.92 158.94 0.5 3.7 6.3 3 10 18.4 1.9

9G-5311 171.7 146.9 145.7 Formed Nitrile 15 176.82 175.92 158.94 0.5 3.7 6.3 3 10 18.4 1.9

6T-2981 171.7 146.9 145.7 Formed Silicone 15 176.82 175.92 158.94 0.5 3.7 6.3 3 10 18.4 1.9

6T-8440 171.7 142.7 141.5 Stellite Nitrile 15 176.82 175.92 158.94 0.5 3.7 6.3 3 10 18.4 1.9

9G-5313 191.26 166.45 165.25 Formed Nitrile 15 196.38 195.48 178.5 0.5 3.7 6.3 3 10 18.4 1.9

4C-1494 191.26 162.32 161.12 C-6 Silicone 15 196.38 195.48 178.5 0.5 3.7 6.3 3 10 18.4 1.9




9W-7331 191.26 162.32 161.12 Stellite Nitrile 8 196.38 195.48 178.5 0.5 3.7 6.3 3 10 18.4 5.7

191-6664 191.26 162.32 161.12 C-6 Nitrile 15 196.38 195.48 178.5 0.5 3.7 6.3 3 10 18.4 1.9

9G-5339 191.26 166.45 165.25 Formed Nitrile 8 196.38 195.48 178.5 0.5 3.7 6.3 3 10 18.4 5.7

9G-5315 210.31 185.5 184.3 Formed Nitrile 15 215.43 214.43 197.55 0.5 3.7 6.3 3 10 18.4 1.9

9W-0054 210.31 185.5 184.3 Formed Viton 15 215.43 214.43 197.55 0.5 3.7 6.3 3 10 18.4 1.9




17

Part No RingOD

Min Ring ID

Max Shaft Diameter

Ring Material

Toric Material

Angle "M" +/-

0.13

"N" +/-

0.13

"V" +/-

0.50

"O" +/-

0.20

"P" +/-

0.25

"Q" +/-

0.25

"R" Max

"S" +/-

0.50

"T" +/-

0.50

"W" Min



9G-5317 251.46 226.65 225.45 Formed Nitrile 15 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 1.9

6Y-0859 251.46 222.4 221.2 Stellite Nitrile 8 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 5.7



9W-4650 251.46 222.4 221.2 Stellite Silicone 15 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 1.9

133-0526 251.46 222.4 221.2 Stellite HSN / HNBR

8 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 5.7

6Y-6277 251.46 222.4 221.2 Stellite Silicone 8 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 5.7

9W-5977 251.46 226.65 225.45 Formed Silicone 8 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 5.7


195-3070 251.46 222.4 221.2 C-6 Nitrile 8 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 5.7

9G-5343 251.46 226.65 225.45 Formed Nitrile 8 256.58 255.68 238.7 0.5 3.7 6.3 3 10 18.4 5.7

1C-9427 259.59 234.78 233.58 Formed Nitrile 15 264.71 263.81 246.83 0.5 3.7 6.3 3 10 18.4 1.9

6Y-0520 259.59 234.78 233.58 Formed Silicone 15 264.71 263.81 246.83 0.5 3.7 6.3 3 10 18.4 1.9

9W-4098 259.59 230.55 229.35 Stellite Nitrile 15 264.71 263.81 246.83 0.5 3.7 6.3 3 10 18.4 1.9


174-4873 292.86 267.95 266.75 Formed LT Nitrile 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

204-6452 292.86 267.95 266.75 Ni-Hard Viton 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

145-8032 292.86 263.6 262.4 Ni-Hard Silicone 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

137-2429 292.86 263.6 262.4 Ni-Hard Nitrile 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

1C-9747 292.86 267.95 266.75 Formed Viton 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

9G-5319 292.86 267.95 266.75 Formed Nitrile 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

9W-4651 292.86 263.6 262.4 Stellite Silicone 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

171-5898 292.86 263.6 262.4 Stellite LT Nitrile 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

18

Part No RingOD

Min Ring ID

Max Shaft Diameter

Ring Material

Toric Material

Angle "M" +/-

0.13

"N" +/-

0.13

"V" +/-

0.50

"O" +/-

0.20

"P" +/-

0.25

"Q" +/-

0.25

"R" Max

"S" +/-

0.50

"T" +/-

0.50

"W" Min

6T-8437 292.86 263.62 262.4 Stellite Nitrile 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

9W-3732 292.86 263.6 262.4 Stellite Nitrile 8 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 5.7

3T-9117 292.86 267.95 266.75 Formed Silicone 15 297.88 296.98 280 0.5 3.7 6.3 3 10 18.4 1.9

174-4874 328 303 301.8 Formed LT Nitrile 15 333 332.1 315.12 0.5 3.7 6.3 3 10 18.4 1.9

125-5538 328 303 301.8 Formed Silicone 15 333 332.1 315.12 0.5 3.7 6.3 3 10 18.4 1.9

186-3277 346.46 317.32 316.12 Ni-Hard Silicone 8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7

130-6889 346.46 317.32 316.12 C-6 HSN / HNBR

8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7

163-7368 346.46 321.64 320.44 Formed LT Nitrile 8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7

166-8815 346.46 317.32 316.12 Ni-Hard HSN / HNBR

15 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 1.9

173-3071 346.46 317.32 316.12 Ni-Hard HSN / HNBR

8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7

118-2900 346.46 317.32 316.12 C-6 Silicone 8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7

6Y-0857 346.46 317.32 316.12 Stellite Nitrile 8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7


9G-5321 346.46 321.64 320.44 Formed Nitrile 15 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 1.9



9G-5347 346.46 321.64 320.44 Formed Nitrile 8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7


6Y-6275 346.46 317.32 316.12 Stellite Silicone 8 351.58 350.68 333.7 0.5 3.7 6.3 3 10 18.4 5.7


9G-5349 394.46 369.09 367.89 Formed Nitrile 8 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 5.7

132-6141 394.46 365.2 364 Stellite Silicone 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

6T-8433 394.46 365.22 364 Stellite Nitrile 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

6Y-6273 394.46 365.2 364 Stellite Silicone 8 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 5.7

19

Part No RingOD

Min Ring ID

Max Shaft Diameter

Ring Material

Toric Material

Angle "M" +/-

0.13

"N" +/-

0.13

"V" +/-

0.50

"O" +/-

0.20

"P" +/-

0.25

"Q" +/-

0.25

"R" Max

"S" +/-

0.50

"T" +/-

0.50

"W" Min

9G-5323 394.46 369.09 367.89 Formed Nitrile 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9


6T-4316 394.46 365.22 364 C-6 Nitrile 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

1C-9067 394.46 365.22 364 C-6 Viton 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

133-0441 394.46 365.22 364 C-6 HSN / HNBR

15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

149-8434 394.46 365.22 364 C-6 Silicone 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

6Y-0855 394.46 365.2 364 Stellite Nitrile 8 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 5.7

137-2428 394.46 365.2 364 Ni-Hard Nitrile 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

155-1388 394.46 365.2 364 Ni-Hard Silicone 15 399.58 398.68 381.7 0.5 3.7 6.3 3 10 18.4 1.9

4D-8960 457.2 427.96 426.76 Stellite Nitrile 15 462.32 461.42 444.44 0.5 3.7 6.3 3 10 18.4 1.9

137-4343 457.2 427.96 426.76 C-6 HSN / HNBR

15 462.32 461.42 444.44 0.5 3.7 6.3 3 10 18.4 1.9

195-9706 457.2 427.96 426.76 C-6 Silicone 15 462.32 461.42 444.44 0.5 3.7 6.3 3 10 18.4 1.9

172-5093 457.2 427.96 426.76 C-6 HSN / HNBR

8 462.32 461.42 444.44 0.5 3.7 6.3 3 10 18.4 5.7


137-2427 457.2 427.96 426.76 Ni-Hard Nitrile 15 462.32 461.42 444.44 0.5 3.7 6.3 3 10 18.4 1.9

195-3495 457.2 427.96 426.76 C-6 Nitrile 15 462.32 461.42 444.44 0.5 3.7 6.3 3 10 18.4 1.9

154-7447 533.4 504.06 502.86 Ni-Hard Nitrile 15 538.52 537.62 520.64 0.5 3.7 6.3 3 10 18.4 4.9

147-1660 533.4 504.06 502.86 Ni-Hard Silicone 15 538.52 537.62 520.64 0.5 3.7 6.3 3 10 18.4 4.9

6T-6802 533.4 504.06 502.86 C-6 Nitrile 15 538.52 537.62 520.64 0.5 3.7 6.3 3 10 18.4 4.9

199-9897 533.4 504.06 502.86 C-6 HSN / HNBR

15 538.52 537.62 520.64 0.5 3.7 6.3 3 10 18.4 4.9

147-5509 533.4 504.06 502.86 C-6 Silicone 15 538.52 537.62 520.64 0.5 3.7 6.3 3 10 18.4 4.9

8E-6327 567.94 538.6 537.4 Stellite Silicone 15 573.06 572.16 555.18 0.5 3.7 6.3 3 10 18.4 4.9

172-5284 567.94 538.6 537.4 C-6 Nitrile 15 573.06 572.16 555.18 0.5 3.7 6.3 3 10 18.4 4.9

20

Part No RingOD

Min Ring ID

Max Shaft Diameter

Ring Material

Toric Material

Angle "M" +/-

0.13

"N" +/-

0.13

"V" +/-

0.50

"O" +/-

0.20

"P" +/-

0.25

"Q" +/-

0.25

"R" Max

"S" +/-

0.50

"T" +/-

0.50

"W" Min

177-4803 567.94 538.6 537.4 Stellite Nitrile 15 573.06 572.16 555.18 0.5 3.7 6.3 3 10 18.4 4.9

199-9898 567.94 538.6 537.4 C-6 HSN / HNBR

15 573.06 572.16 555.18 0.5 3.7 6.3 3 10 18.4 4.9

1C-9748 700 666 664.8 C-6 Nitrile 15 705.56 704.66 687.68 0.5 3.7 6.3 3 10 18.4 4.9

147-5510 700 666 664.8 C-6 Silicone 15 705.56 704.66 687.68 0.5 3.7 6.3 3 10 18.4 4.9

110-9718 865 831 829.8 C-6 Nitrile 15 870.56 869.67 852.68 0.5 3.7 6.3 3 10 18.4 4.9

152-9157 865 831 829.8 C-6 HSN / HNBR

15 870.56 869.67 852.68 0.5 3.7 6.3 3 10 21.3 4.9

147-5511 865 831 829.8 C-6 Silicone 15 870.56 869.67 852.68 0.5 3.7 6.3 3 10 18.4 4.9

Class L

147-4446 480 442.7 441.5 Ni-Hard HSN / HNBR

15 486.5 485.38 464.04 0.5 4.66 7.94 3.78 10 23.18 4.9

148-6633 939.8 897.2 896 C-6 HSN / HNBR

15 946.3 945.18 923.84 0.5 4.66 7.94 3.78 10 23.18 4.9

Note A: Seal seat finish should be between 3.75 to 6.25 micrometers to assure a no-slip surface. Rougher finishes, up to 10 micrometers, can be used in special applications. Contact Caterpillar Precision Seals for details.

Note B: Distance "U" varies with surface speed and environmental conditions. Consult with Caterpillar Precision Seals for recommendations on specific applications.

Note C: Dimension "P" locates the center of radius "Q". Angle "S" is the tangent to top of radius "Q" at diameter "M".

Note D: Recommended undercut of 5.7 mm is required with 8 degree seal ramp angles. A 1.9 mm depth can be used with the 15 degree seal ramp angles.

21

22

Seal Assembly and Installation for (HDDF) Heavy Duty Dual Seals DF Seal Assembly Contents: 1. (2) Metal Seal Rings 2. (2) Rubber Belleville Washers Service Kit Contents: 1. (1) Seal Group 2. Installation Instruction Field Kit Contents: 1. (2) Rubber Belleville Washers 2. Installation Instructions Terminology

Housing Preparation The housing components that contact the Belleville washers must be free from foreign material (oil, grease, dirt, metal chips, dust or lint particles, etc) before installing the seal. This should be done using a lint-free wipe and a non-petroleum base solvent. Dry with a clean wipe. Seal rings must be handled with care. Lapped seal faces must not be damaged or scratched. All parts are to be free of grease, oil, dirt and scale. Seal Preparation Belleville washers should be installed flush against the inside shoulder of the metal sealing rings.

Installation Process Install each half seal (Belleville washer and sealing ring) into the housing by carefully pushing on the seal half until it is fully seated. Check to be sure that the seal is not cocked and that the washer is seated evenly at the bottom of the bore. If the seal is a single barb design, the barbed half goes in the suspended housing to insure no movement of the seal half during the assembly process.

After installing the seal halves into the unit, wipe both metal sealing faces clean with a lint-free wipe. Apply a thin film of oil to the sealing faces with a lint-free applicator. Oil must not contact surfaces other than the sealing faces. Final Assembly While completing the final assembly of the unit, make sure that both housings are in correct alignment and are concentric. Observe carefully that the rubber rings do not unseat from the bottom of the housing. Slowly bring the two housings together. High impact can scratch or break the seal components. To set the seals, hold one-half of the assembly stationary while rotating the other member a minimum of ten complete revolutions. This is very important!

23

Field Kit Usage If the sealing rings are to be reused, the highly polished seal band should be inspected. If the band is not uniform or is on the inner half of the seal face, the complete seal should be replaced using a service kit. If the metal sealing rings are reused, any corrosion or hardened material that may exist must be removed (Surface A). Wash the metal rings with solvent to remove all oil and wipe dry with one of the lint-free wipes. For seals in service more than two weeks, the Belleville washers should be replaced. Using field kits, they must be replaced as a set of two.

DF Seals

Ring OD

Part No Min Ring ID

Max Shaft Dia.

Ring Matl

Toric Matl

Barb Bore Diameter "B"

Operating Width "C"

Bore Depth "E" Min Max

Min "G"

Max "J"

Shoulder Dia. "F"

61.6132-0356 46.48 42.88 Stellite Nitrile 2 70.10 +/- 0.06 24.74 +/- 0.97 11.51 0 57.96 0 0.94

61.6132-0362 46.48 42.88 Stellite LT Nitrile 2 70.10 +/- 0.06 24.74 +/- 0.97 11.51 0 57.96 0 0.94

61.6132-0364 46.48 42.88 Stellite Viton 2 70.10 +/- 0.06 24.74 +/- 0.97 11.51 0 57.96 0 0.94


73132-0377 57.51 53.98 Stellite Nitrile 2 82.55 +/- 0.06 22.86 +/- 0.84 10.62 0 70.08 0 1.14



86.36132-0393 67.08 63.5 Stellite Silicone 2 95.56 +/- 0.06 23.04 +/- 0.84 10.72 0 80.98 0 1.07








98.83132-0413 73.84 59.56 Stellite Viton 2 102.28 +/- 0.06 23.32 +/- 0.89 10.67 0 88.39 0 1.07

24

Ring OD

Part No Min Ring ID

Max Shaft Dia.

Ring Matl

Toric Matl


Operating Width "C"


Min "G"

Max "J"

Shoulder Dia. "F"



100.33132-0431 83.82 79.25 Stellite Nitrile 1 115.09 +/- 0.13 23.32 +/- 0.91 10.82 0 107.14 1.27 1.07


106.55132-0434 89.86 86.36 Stellite Viton 2 117.48 +/- 0.06 30.37 +/- 1.14 14.22 0 108.18 0 1.07



112.45132-0455 93.68 88.9 Stellite Nitrile 2 127.38 +/- 0.06 27.66 +/- 1.57 12.64 107.44 108.46 0 0.89

119.46132-0445 93.68 88.9 Stellite Viton 2 125.81 +/- 0.06 27.84 +/- 1.09 12.98 0 109.12 0 0.89







132.84132-0471 113.79 109.53 Stellite Nitrile 2 147.90 +/- 0.08 28.00 +/- 0.61 12 0 130.18 0 1.07




142.24133-0445 113.79 109.53 C-6 Nitrile 1 152.40 +/- 0.08 33.53 +/- 1.02 15.88 0 131.39 0 1.3






155.58133-0442 131.85 122 Ni-Hard Nitrile 2 171.45 +/- 0.08 35.35 +/- 1.02 16.92 0 151.76 0 1.45

25

Ring OD

Part No Min Ring ID

Max Shaft Dia.

Ring Matl

Toric Matl


Operating Width "C"


Min "G"

Max "J"

Shoulder Dia. "F"



162.56132-0513 143.66 140.2 C-6 Nitrile 2 173.02 +/- 0.08 27.74 +/- 1.02 12.98 0 168.35 0 1.44






167.95132-0520 145.03 142.88 Ni-Hard Nitrile 2 184.19 +/- 0.04 39.09 +/- 0.38 16.51 156.82 164.74 0.81 1.45


179.86132-0529 153.95 149.23 Stellite Nitrile 2 194.08 +/- 0.08 38.35 +/- 0.79 18.39 166.32 174.45 1.42 1.85

179.88133-0456 164.96 149.23 Ni-Hard Nitrile 2 194.08 +/- 0.08 38.35 +/- 0.79 18.39 166.32 174.45 1.42 1.85


184.15132-0534 162.35 158.75 Stellite Nitrile 2 190.50 +/- 0.07 31.75 +/- 0.46 15.01 0 175 0 1.27


195.07132-0537 168.4 161.93 Stellite Viton 2 206.25 +/- 0.08 32.13 +/- 1.02 15.19 190.63 191.9 3.18 1.07

195.07132-0538 168.4 161.93 Stellite LT Nitrile 2 206.25 +/- 0.08 32.13 +/- 1.02 15.19 190.63 191.9 3.18 1.07





214.55132-0555 193.67 188.93 Stellite Viton 2 238.76 +/- 0.10 42.06 +/- 1.02 20.14 0 214.15 0 1.85


229.49132-0570 203.33 198.12 Stellite Viton 1 254.00 +/- 0.10 44.45 +/- 1.27 21.21 0 226.31 0 1.47



26

Ring OD

Part No Min Ring ID

Max Shaft Dia.

Ring Matl

Toric Matl


Operating Width "C"


Min "G"

Max "J"

Shoulder Dia. "F"








261.33172-1619 241.54 240.15 Formed LT Nitrile 2 269.88 +/- 0.08 22.10 +/- 0.80 10.67 250.34 255.72 3.1 1.19

261.92155-8358 237.99 236.2 C-6 Nitrile 2 269.88 +/- 0.08 22.86 +/- 0.76 10.67 250.34 255.72 1.3 1.19

269.14175-2281 248.7 247.36 Formed Nitrile 2 279.40 +/- 0.13 28.92 +/- 0.81 12.67 259.56 261.14 1.25 1.19










352.43148-9594 319.29 314.96 C-6 Nitrile 2 365.12 +/- 0.13 42.06 +/- 1.27 20.02 342.14 343.66 1.52 1.45


391.16132-0626 354.84 349.25 C-6 Viton 2 401.75 +/- 0.13 47.62 +/- 0.81 23.01 0 380.62 0 2.26

391.16132-0632 354.84 349.25 C-6 Nitrile 2 401.75 +/- 0.13 47.62 +/- 0.81 23.01 0 380.62 0 2.26

391.16132-0634 354.84 349.25 Ni-Hard Nitrile 2 401.75 +/- 0.13 47.62 +/- 0.81 23.01 0 380.62 0 2.26


413.46132-0637 378.97 374.65 Stellite Viton 2 424.05 +/- 0.13 47.62 +/- 0.81 23.01 0 402.92 0 2.26

27

Ring OD

Part No Min Ring ID

Max Shaft Dia.

Ring Matl

Toric Matl


Operating Width "C"


Min "G"

Max "J"

Shoulder Dia. "F"



469.9132-0643 441.35 434.98 Stellite Viton 2 488.70 +/- 0.15 38.89 +/- 1.35 18.39 464.82 467.36 3.56 1.09


481.33139-5949 440.44 434.98 C-6 Nitrile 2 488.70 +/- 0.15 38.89 +/- 1.35 18.39 464.82 467.36 3.56 1.09



529.46176-1164 497.4 490.78 Ni-Hard Nitrile 2 546.10 +/- 0.15 41.66 +/- 1.07 19.91 529.59 532.13 4.44 1.45

531132-0650 490.47 485.78 Ni-Hard Nitrile 2 546.10 +/- 0.15 41.66 +/- 1.07 19.91 529.59 532.13 4.44 1.45


663.58132-0654 619.11 606.43 Stellite Viton 2 682.63 +/- 0.15 52.96 +/- 1.02 25.6 0 648.97 0 2.26

780.19132-0652 748.26 736.6 C-6 Nitrile 2 812.80 +/- 0.15 53.98 +/- 1.02 26.11 0 779.07 0 2.26

780.19132-0653 748.26 736.6 C-6 Viton 2 812.80 +/- 0.15 53.98 +/- 1.02 26.11 0 779.07 0 2.26

Note A: Seal seat finish should be between 3.75 to 6.25 micrometers to assure a no-slip surface. Rougher finishes, up to 10 micrometers, can be used in special applications. Contact Caterpillar Precision Seals for details.

Note B: Distance "U" varies with surface speed and environmental conditions. Consult with Caterpillar Precision Seals for recommendations on specific applications.

28

Field KitsOD Field Kit No Washer Matl Washer 1 No. Washer 2 No. Barb No.61.6 132-0357 Nitrile 132-0860 2

61.6 170-0734 LT Nitrile 132-5586 2

61.6 174-9900 Viton 132-5593 2

65.08 132-0366 Nitrile 132-0824 132-0855 1

65.08 132-0370 Nitrile 132-0855 2

65.08 132-0373 LT Nitrile 132-5595 2

73 132-0378 Nitrile 132-0865 2

86.36 132-0381 Nitrile 132-0822 132-0853 1

86.36 132-0384 Nitrile 132-0853 2

92.86 132-0398 Nitrile 132-0827 132-0859 1

92.86 132-0401 Nitrile 132-0859 2

98.83 132-0412 LT Nitrile 141-1088 2

98.83 132-0414 Viton 132-5596 2

100.33 132-0421 Nitrile 132-0832 132-0864 1

100.33 132-0423 Nitrile 132-0864 2

100.33 132-0429 LT Nitrile 132-5589 2

112.45 132-0436 Nitrile 132-0829 132-0861 1

112.45 132-0439 Nitrile 132-0861 2

112.45 132-0457 Nitrile 132-0858 2

119.46 132-0446 Viton 132-5594 2

123.83 132-0461 Nitrile 132-0890 2

123.83 132-0465 Nitrile 132-0826 132-0857 1

123.83 132-0468 Nitrile 132-0857 2

132.84 132-0472 Nitrile 132-0891 2

132.84 132-0477 Nitrile 132-0866 2

132.84 132-0478 LT Nitrile 132-0848 132-5587 1

132.84 147-2281 Viton 141-4932 2

144.15 132-0489 Nitrile 132-0856 2

155.58 132-0501 Nitrile 132-0835 132-0867 1

155.58 132-0504 Nitrile 132-0867 2

165.1 132-0511 Nitrile 132-5568 2

167.49 132-0526 Silicone 132-5601 2

168.28 132-0517 Nitrile 132-0868 2

168.28 132-0523 Nitrile 132-0876 2

179.86 132-0530 Nitrile 132-0854 2

184.15 132-0533 Nitrile 132-0886 2

195.07 132-0539 Nitrile 132-0878 2

195.07 132-0540 Nitrile 132-0859 132-0878 1

29

OD Field Kit No Washer Matl Washer 1 No. Washer 2 No. Barb No.195.07 132-0541 Viton 132-5563 2

196.85 132-0548 Nitrile 132-0887 2

207.16 5E-9812 Nitrile 132-0893 2

214.55 132-0556 Nitrile 132-0838 132-0872 1

214.55 132-0557 Nitrile 132-0872 2

214.55 133-0460 Viton 132-5597 132-0872 1

220.68 132-0566 Nitrile 132-0841 132-0888 1

220.68 132-0567 Nitrile 132-0888 2

222.25 132-0562 Nitrile 132-5566 2

229.49 132-0574 Viton 132-0830 132-0862 1

229.49 132-0575 Nitrile 132-0831 132-0863 1

229.49 132-0576 Nitrile 132-0863 2

242.09 132-0583 Nitrile 132-0882 2

245.75 132-0589 Nitrile 132-0873 2

260.35 132-0593 Nitrile 132-0897 2

261.92 171-1188 Nitrile 155-4091 2

270.51 132-0606 Nitrile 132-0889 2

273.05 132-0598 Nitrile 132-0881 2

273.05 132-0602 Nitrile 132-5562 2

322.58 133-0465 Nitrile 132-5590 2

329.31 132-0618 Nitrile 132-0896 2

352.43 132-0619 Nitrile 132-0899 2

391.16 132-0628 Nitrile 132-0877 2

391.16 132-0629 Viton 132-0900 2

413.46 132-0638 Viton 132-5577 2

469.9 132-0644 Viton 132-5592 2

481.33 132-0640 Nitrile 132-0871 2

529.46 133-0461 Nitrile 132-0875 2

663.58 132-0655 Nitrile 132-5564 2

663.58 132-0656 Viton 132-5581 2

780.19 148-3471 Nitrile 132-5567 2

30

Metal Face Seals v3[1]

Documents

material material

final assemblywhile

field kit

seal seat

toric cross

petroleum

good endplay

elastomeric