Ural ( Ural ( Урал Урал ) ) - - Dnepr ( Dnepr ( Днепр Днепр ) ) Part 3: Russian Motorcycle Part 3: Russian Motorcycle Sidecar Swing Sidecar Swing - - Arms Arms (Also See Part 1: Russian Motorcycle Swing (Also See Part 1: Russian Motorcycle Swing - - Arms, Part 2: Rear Arms, Part 2: Rear - - Wheel Swing Wheel Swing - - Arms, Arms, Part 4: Swing Part 4: Swing - - Arm Components and Part 5: Repair of Swing Arm Components and Part 5: Repair of Swing - - Arms) Arms) Ernie Franke Ernie Franke e e [email protected][email protected]2 / 2013 2 / 2013
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Ural (Урал) - Dnepr (Днепр Part 3: Russian Motorcycle ...Ural (Урал) - Dnepr (Днепр)Part 3: Russian Motorcycle Sidecar Swing-Arms (Also See Part 1: Russian Motorcycle
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Sidecar SwingSidecar Swing--ArmsArms(Also See Part 1: Russian Motorcycle Swing(Also See Part 1: Russian Motorcycle Swing--Arms, Part 2: RearArms, Part 2: Rear--Wheel SwingWheel Swing--Arms, Arms,
Part 4: SwingPart 4: Swing--Arm Components and Part 5: Repair of SwingArm Components and Part 5: Repair of Swing--Arms)Arms)
Early version of Russian MEarly version of Russian M--72 Heavy Motorcycle with Sidecar72 Heavy Motorcycle with Sidecar
The original MThe original M--72 sidecar had a rigid frame over the sidecar72 sidecar had a rigid frame over the sidecar--wheel fender.wheel fender.
Notice Frame over Notice Frame over Sidecar Wheel FenderSidecar Wheel Fender
Notice Frame over Notice Frame over Sidecar Wheel FenderSidecar Wheel Fender
Original 1941 MOriginal 1941 M--72 (no swing72 (no swing--arm, no torsion bar)arm, no torsion bar)Notice Frame over Notice Frame over
Sidecar Wheel FenderSidecar Wheel Fender
LeafLeaf--Spring Suspension Spring Suspension of Sidecar Tubof Sidecar Tub
Prefix to All Part #Prefix to All Part #’’s is 910s is 910--Example: Frame 910505Example: Frame 910505--ГГ
The original MThe original M--72 sidecar had no swing72 sidecar had no swing--arm or torsion bar. arm or torsion bar. The sidecar tub was suspended using steelThe sidecar tub was suspended using steel--leaf springs.leaf springs.
Later MLater M--72 Frame72 FrameNotice Frame over Notice Frame over
Sidecar Wheel FenderSidecar Wheel Fender
LeafLeaf--Spring Suspension Spring Suspension of Sidecar Tubof Sidecar Tub
Leaf Spring Clamp Leaf Spring Clamp 72700877270087
Clamp JointClamp Joint72203117220311
Sidecar Axle,Sidecar Axle,Second Type Sidecar Frame Second Type Sidecar Frame
with Pipe around Fenderwith Pipe around Fender7220602 7220602
Later MLater M--72 sidecars had a few changes with different numbers for many pa72 sidecars had a few changes with different numbers for many parts.rts.
Later MLater M--72 Frame72 FrameDualDual
LeafLeaf--Spring Suspension Spring Suspension of Sidecar Tubof Sidecar Tub
Notice Frame over Notice Frame over Sidecar Wheel FenderSidecar Wheel Fender
This tab in front of the This tab in front of the sidecar wheel is an sidecar wheel is an
indication that the frame indication that the frame is not the oldest version!is not the oldest version!
The MThe M--72 sidecar had dual steel leaf72 sidecar had dual steel leaf--springs, no torsion bars or rubber mounts.springs, no torsion bars or rubber mounts.
Notice Frame over Notice Frame over Sidecar Wheel FenderSidecar Wheel Fender
ClamClam--Shell ColletsShell Collets
99--Leaf SpringsLeaf Springs
The sidecar frame is semiThe sidecar frame is semi--rigidly attached to the motorcycle frame through rigidly attached to the motorcycle frame through ball joints and tieball joints and tie--rods. The tub was suspended on steel leafrods. The tub was suspended on steel leaf--springs.springs.
Leaf Spring ULeaf Spring U--BoltBolt72205217220521
Torsion Bar Cornet Torsion Bar Cornet 72202097220209
Leaf Spring (7 leafs)Leaf Spring (7 leafs)72200807220080
torsion bar cornettorsion bar cornet
MM--72M (Ural, 1955 Version of M72M (Ural, 1955 Version of M--72)72)
Leaf Spring Clamp Leaf Spring Clamp 72700877270087 Sidecar Ball Sidecar Ball jJointjJoint
72203207220320
Sidecar AxleSidecar Axle72202267220226
Clamp JointClamp Joint72203117220311
In 1955, Ural improved the sidecar suspension with a torsion barIn 1955, Ural improved the sidecar suspension with a torsion barin the rear crossin the rear cross--tubing of the sidecar frame, while retaining the springs.tubing of the sidecar frame, while retaining the springs.
Cover for SidecarCover for Sidecar--Wheel Wheel BrakeBrake--DrumDrum
Torsion Bar Cornet Torsion Bar Cornet 72202097220209
RockerRocker--ArmArmSidecarSidecar--WheelWheel
LeverLever
Housing for Sidecar Torsion Bar
Housing for Sidecar Torsion Bar
Clamps for Torsion BarClamps for Torsion Bar
The torsion bar was clamped at each end, to absorb shocks from tThe torsion bar was clamped at each end, to absorb shocks from the rockerhe rocker--arm.arm.
One end of the torsion bar was clamped essentially to the sidecaOne end of the torsion bar was clamped essentially to the sidecar frame,r frame,while the other end was connected to the rockerwhile the other end was connected to the rocker--arm of the sidecararm of the sidecar--wheel.wheel.
Collet Collet (2) Held Firmly (2) Held Firmly in Sidecar Framein Sidecar Frame
MM--72M Sidecar Torsion Bar72M Sidecar Torsion Bar
Dnepr KDnepr K--750750
SwingSwing--Arm (No Torsion Bar )Arm (No Torsion Bar )
Dnepr adopted the swing-arm for sidecar suspension.
SwingSwing--Arm (No Torsion Bar )Arm (No Torsion Bar )
The KThe K--750 pioneered the swing750 pioneered the swing--arm for sidecararm for sidecar--wheel suspension wheel suspension and rubber silentand rubber silent--block pivot points.block pivot points.
The factory plans for the KThe factory plans for the K--750 sidecar frame clearly shows the added swing750 sidecar frame clearly shows the added swing--arm.arm.
KK--750, K750, K--750M Sidecar Frame Parts750M Sidecar Frame Parts
Holder for ClamHolder for Clam--Shell Shell Ball ClampsBall Clamps
KK--750 and M750 and M--61, M61, M--62 Torsion Bars62 Torsion Bars1.1. End CapEnd Cap2.2. RockerRocker--Arm Clamp (Collet)Arm Clamp (Collet)3.3. Torsion shaftTorsion shaft4.4. Gland (Seal)Gland (Seal)5.5. Seal Cover (Gasket)Seal Cover (Gasket)6.6. Bronze BushingBronze Bushing7.7. Supporting BushingSupporting Bushing8.8. Frame, CrossFrame, Cross--PipePipe9.9. CornetCornet10.10. BoltBolt11.11. Lever BushingLever Bushing12.12. Adjusting ScrewAdjusting Screw13.13. SidecarSidecar--Wheel AxleWheel Axle14.14. RockerRocker--Arm LeverArm Lever
Cornet (9) Held Firmly Cornet (9) Held Firmly in Sidecar Framein Sidecar Frame
The flexure of the torsion bar absorbed the vertical rocking upThe flexure of the torsion bar absorbed the vertical rocking up--andand--down down of the sidecar wheel.of the sidecar wheel.
1. Propeller Shaft Assembly1. Propeller Shaft Assembly2. Gland (Seal) Nut Assembly2. Gland (Seal) Nut Assembly3. Left Cover 3. Left Cover 4. Gasket under Left and Right Covers4. Gasket under Left and Right Covers5. Sidecar Pendulum Assembly5. Sidecar Pendulum Assembly6. Right Cover6. Right Cover7. Collar Seal 7. Collar Seal 8. Follower8. Follower9. Sidecar Wheel Axle 9. Sidecar Wheel Axle 10. Ball Bearing10. Ball Bearing11. Driven Gear11. Driven Gear12. Sleeve (Bushing)12. Sleeve (Bushing)13. Ball Bearing in Right Cover13. Ball Bearing in Right Cover14. Ball Bearing for Pinion Gear14. Ball Bearing for Pinion Gear15. Ball Bearing for Pinion Gear15. Ball Bearing for Pinion Gear16. Small Pinion Gear16. Small Pinion Gear
Welded Eye for Shock Welded Eye for Shock Absorber AttachmentAbsorber Attachment
The The sidecar wheel gear unit reduces the speed of the transverse axleto that of the sidecar wheel axle.
Swing Arm Rear SuspensionSwing Arm Rear Suspension
The bare sidecar frame shows the transverse drive shaft connected to the gear reducer, which drives the sidecar-wheel.
ClawClaw--and Ball Sidecar Attachment and Ball Sidecar Attachment (relics.(relics.susu))
The sidecar has a front and rear ballThe sidecar has a front and rear ball--andand--claw attachment to the motorcycle.claw attachment to the motorcycle.
Sidecar Rear Ball JointSidecar Rear Ball Joint
Clamp for Setting Sidecar Clamp for Setting Sidecar Height and ToeHeight and Toe--InIn
Initial production of Ural’s still used the torsion bar in the sidecar.Mid-production (1968-1970) saw the introduction of the swing-arm.
ММ--63 Sidecar63 Sidecar--Wheel Torsion BarWheel Torsion Bar
1.1. Torsion CapTorsion Cap2.2. Seal ClipSeal Clip3. Axle of Lever Hub3. Axle of Lever Hub4. Rear Tubing of Sidecar Frame4. Rear Tubing of Sidecar Frame5. Torsion Bar (Rod)5. Torsion Bar (Rod)6. Locking Screws6. Locking Screws7. Claw7. Claw--Clamp to Motorcyce FrameClamp to Motorcyce Frame8. Left Tube of Sidecar Frame8. Left Tube of Sidecar Frame9. Travel Stop Arm9. Travel Stop Arm10. Rubber Buffer10. Rubber Buffer11. Sidecar Wheel Axle11. Sidecar Wheel Axle12. Axle Lever12. Axle Lever13. Seal13. Seal14. Ring Seal14. Ring Seal15. Collet (Splined Inner Sleeve)15. Collet (Splined Inner Sleeve)
11. Sidecar Wheel Axle
11. Sidecar Wheel Axle
5. Torsion Bar
5. Torsion Bar4. Rear Cross Tubing of Sidecar Frame
4. Rear Cross Tubing of Sidecar Frame
7. Clam7. Clam--Shell Clamp to Shell Clamp to Motorcycle FrameMotorcycle Frame
9. Limiter Stop9. Limiter Stop
Sidecar Torsion Bar Sidecar Torsion Bar and Cornetsand Cornets
Even though the motorcycle was upgraded with a swingEven though the motorcycle was upgraded with a swing--arm suspension arm suspension for its rearfor its rear--wheel, the sidecar retained the torsion bar on the sidecarwheel, the sidecar retained the torsion bar on the sidecar--wheel.wheel.
MM--63 and M63 and M--66 (1WD) Rear and Sidecar Wheel Suspension66 (1WD) Rear and Sidecar Wheel Suspension
It appears that Ural must have later discarded the MIt appears that Ural must have later discarded the M--63 sidecar torsion bar, 63 sidecar torsion bar, in favor of a swingin favor of a swing--arm.arm.
We can clearly see the swing-arm that replaced the torsion bar suspension.
Rear of Rear of SidecarSidecar
SwingSwing--ArmArm
SidecarSidecar--Wheel AxleWheel Axle
Sidecar SwingSidecar Swing--Arm EvolutionArm Evolution1963 (Start of M1963 (Start of M--63 Production Line)63 Production Line) 1972 (End of M1972 (End of M--63 Production Line)63 Production Line)
Torsion Bar (No SwingTorsion Bar (No Swing--Arm)Arm)SwingSwing--Arm (No Torsion Bar )Arm (No Torsion Bar )
1972 (Start of M1972 (Start of M--66 Production Line)66 Production Line)
SwingSwing--Arm (No Torsion Bar )Arm (No Torsion Bar )
As strange as it may seem, Ural changed motorcycle and sidecar suspension in mid-stream. I’m sure that never happened before!
MM--67.3667.36
SwingSwing--Arm (No Torsion Bar )Arm (No Torsion Bar )
1. Rear Suspension . Rear Suspension SwingarmSwingarm 10.10. ColletCollet Clamp Clamp 20. Lever 20. Lever -- Sidecar WheelSidecar Wheel2. Rear Mud Flap2. Rear Mud Flap 11.11. ColletCollet Clamp Screw Clamp Screw 21. Brake Tie Rod21. Brake Tie Rod3. Rear Grab Bar 3. Rear Grab Bar 12. Motorcycle Stand 12. Motorcycle Stand 22. Brake Drum cover22. Brake Drum cover4. Spring4. Spring--Loaded Hydraulic Shock Absorber Loaded Hydraulic Shock Absorber 13. Brake Pedal 13. Brake Pedal 23. Sidecar Wheel Axle23. Sidecar Wheel Axle5. Seat (Saddle or Tractor) 5. Seat (Saddle or Tractor) 14. Sidecar Wheel Brake Lever 14. Sidecar Wheel Brake Lever 24. Protective Hood24. Protective Hood6. Strap 6. Strap 15. Sidecar Frame Legs 15. Sidecar Frame Legs 25. Tie Rod Nut25. Tie Rod Nut7. Motorcycle Frame 7. Motorcycle Frame 16. Sidecar Wheel Brake Rod 16. Sidecar Wheel Brake Rod 26. Sidecar Fender26. Sidecar Fender8. Sidecar Adjusting Strut 8. Sidecar Adjusting Strut 17. Rear 17. Rear ColletCollet Clamp BracketClamp Bracket 27. Rubber Body Suspension27. Rubber Body Suspension9. Sidecar Frame Legs 9. Sidecar Frame Legs 18. Rear Bracket Fastening Bolt 18. Rear Bracket Fastening Bolt 28. Parking Brake28. Parking Brake
19. Lever Pins (Long Bolts)19. Lever Pins (Long Bolts)
The rear wheel is suspended on a trailing swing-arm, pivoting on rubber (silent block) bushings located by removable pins in the frame and is supported by dual hydraulic
shocks/springs. The final drive bolts onto the right-hand side of the swing-arm. The sidecar wheel is carried on a forked, trailing-link swing-arm, supported by a single
hydraulic/shock/spring, pivoting in silent block bushings around long bolts (“lever pins”).
Sidecar SwingSidecar Swing--Arm,Arm,For Models with Sidecar Brake, For Models with Sidecar Brake, but Goes Well with Sidecar w/o Brakebut Goes Well with Sidecar w/o Brake(K(K--750) 750) Vendor ID: 1021Vendor ID: 1021List Price: List Price: €€47.0047.00(www.(www.uralural--hamburghamburg.de).de)
Sidecar SwingSidecar Swing--Arm without DriveArm without Drive(Dnepr)(Dnepr)List Price: List Price: €€69.0069.00Vendor ID: S822Vendor ID: S822(www.(www.uralural--zentralezentrale.de).de)
The Long Frame Had the 6408 GearThe Long Frame Had the 6408 Gear--Box), as Box), as Opposed to Later, Longer MTOpposed to Later, Longer MT--804 Gear804 Gear--BoxBox
Ural 750cc SwingUral 750cc Swing--Arms with and w/o BrakeArms with and w/o Brake
SwingSwing--Arm without BrakeArm without Brake(Ural 750cc)(Ural 750cc)Vendor ID: 003.819Vendor ID: 003.819List Price: List Price: €€250.00250.00(www.(www.oldtimergarageoldtimergarage..eueu))
SwingSwing--Arm with BrakeArm with Brake(Ural 750cc)(Ural 750cc)Vendor ID: 003.820Vendor ID: 003.820List Price: List Price: €€350.00350.00(www.(www.oldtimergarageoldtimergarage..eueu))
Attachment to Shock AbsorberAttachment to Shock Absorber
SwingSwing--Arm with Brake, 2WDArm with Brake, 2WD(MT(MT--16)16)Vendor ID: 003.854Vendor ID: 003.854List Price: List Price: €€250.00250.00(www.(www.oldtimergarageoldtimergarage..eueu))
SwingarmSwingarm sidecar withsidecar with drivetrain drivetrain (MT(MT--16)16)Vendor ID: S2001 Vendor ID: S2001 List Price: List Price: €€198.00198.00(www.(www.uralural--zentralezentrale.de).de)
Sidecar SwingSidecar Swing--Arm with Drive and BrakeArm with Drive and Brake(Dnepr 650cc)(Dnepr 650cc)Vendor ID: S3622 Vendor ID: S3622 List Price: List Price: €€179.00179.00(www.(www.uralural--zentralezentrale.de).de)
The Dnepr swing-arm is not interchangeable with the Ural swing-arm.
Reduction Gear and Transverse AxleReduction Gear and Transverse Axle((MTMT--12, MT12, MT--16, MB16, MB--650, MB650, MB--750750))ID: 190560081786ID: 190560081786List Price: List Price: €€145.00145.00((www.ebay.dewww.ebay.de))
Sidecar Sidecar Wheel AxleWheel Axle
Transverse Drive Shaft
Transverse Drive Shaft
Pendulum SwingPendulum Swing--ArmArm
A transverse shaft from the differential rear drive A transverse shaft from the differential rear drive powers the sidecar wheel thru the sidecar drive gear reducer.powers the sidecar wheel thru the sidecar drive gear reducer.
Sidecar Rubber Mount SuspensionSidecar Rubber Mount Suspension
Sidecar Rubber DamperSidecar Rubber DamperRubber Spring for Seat or Sidecar BodyRubber Spring for Seat or Sidecar Body
Sidecar Rubber BumperSidecar Rubber Bumper
The A-shaped and conical structures serve as rubber isolator on the sidecar.
2010 Ural (1WD)2010 Ural (1WD)
22Side Prop with Adjusting ForkSide Prop with Adjusting ForkIMZIMZ--8.1018.101--2005020050111111Spring & Hydraulic ShockSpring & Hydraulic ShockIMZIMZ--8.10378.1037--2600126001--080899
11Sidecar FrameSidecar FrameIMZIMZ--8.10378.1037--20012200128811Arm with Wheel Axle Arm with Wheel Axle AssyAssyIMZIMZ--8.10378.1037--2002020020--010177QtyQtyDescriptionDescriptionPart #Part ###
11Sidecar FrameSidecar FrameIMZIMZ--8.1078.107--2001220012--01 01 8811Arm with Wheel Axle Arm with Wheel Axle AssyAssyIMZIMZ--8.1078.107--2002020020--01 01 77QtyQtyDescriptionDescriptionPart #Part ###
MTMT--16 Rear16 Rear--Wheel and Sidecar Suspension Wheel and Sidecar Suspension (www.russianiron.com(www.russianiron.com))
SwingSwing--Arm Arm Pivot PointPivot Point
Sidecar Sidecar Shock AbsorberShock Absorber
SidecarSidecar--Wheel Wheel SwingSwing--ArmArm
RearRear--Wheel Wheel SuspensionSuspension
Dnepr MB Sidecar with Locking Differential Dnepr MB Sidecar with Locking Differential (relics.(relics.susu))
Often itOften it’’s helpful to see all the pieces in perspective, as is the case s helpful to see all the pieces in perspective, as is the case for this military sidecar with locking differential 2WD.for this military sidecar with locking differential 2WD.
Pivot Point for Pivot Point for Sidecar SwingSidecar Swing--ArmArm
2WD Motorcycle 2WD Motorcycle SwingSwing--ArmArm
RubberRubber--Mount Mount Sidecar SuspensionSidecar Suspension
Locking Differential Locking Differential Final Drive (FD)Final Drive (FD)