Keyless Timing Pulleys - L MechaLock Standard Type Incorporated (With Centering Function) Keyless Timing Pulleys - L -1181 1 -1182 1 QFor Timing Belts W P.1219, for Open End Belt W P.1231 *Hard Anodize Treatment: Film Hardness 300HV~ Part Number MMaterial SSurface Treatment Belt Width 12.7mm (1/2 inch) Belt Width 19.1mm (3/4 inch) Belt Width 25.4mm (1 inch) Belt Width 38.1mm (1.5 inch) Pulley Flange Bushing Pulley Flange Bushing A: 14 W: 19 A: 21 W: 26 A: 27 W: 32 A: 40 W: 45 MTPLA_ _L050 MTPLA_ _L075 MTPLA_ _L100 MTPLA_ _L150 7075 Aluminum Alloy 5052 Aluminum Alloy 1045 Carbon Steel Clear Anodize - MTPLK_ _L050 MTPLK_ _L075 MTPLK_ _L100 MTPLK_ _L150 Hard Clear Anodize * - MTPLN_ _L050 MTPLN_ _L075 MTPLN_ _L100 MTPLN_ _L150 Electroless Nickel Plating - MTPL_ _L050 MTPL_ _L075 MTPL_ _L100 MTPL_ _L150 1045 Carbon Steel Low Carbon Steel 1045 Carbon Steel Black Oxide MTPLP_ _L050 MTPLP_ _L075 MTPLP_ _L100 MTPLP_ _L150 Electroless Nickel Plating dH7 * W *A 2.5 2.5 D+1 D 1 F Shape D O.D. P.D. * W *A 2.5 2.5 dH7 E F (L) * Tightening Screw E Shape · Pulley Shape P.D. O.D. R0.53 R0.86 20° 20° 2.13 3.10 Tooth groove dimensions slightly vary according to the number of teeth. Tooth Profile (ISO Standard Rack Dimensions) (Pitch: 9.525mm) * For quantity and size of tightening screws with flange installed, D P.1179 ESurface treatment may not be applied to shaft bores. ETwo types of bushings are available: Standard Type (ST Bushings) and Short Type (SH Bushings). See D P.1179 ECut Flange for 60 and 72 Toothed Pulleys. EFor Shape F of S8M250, ST bushing is applicable to shaft bore diameter of 10~25 and SH bushing is applicable to 28~35. ESelect Shaft Bore Dia. from Table 1. Part Number Pulley Shape dH7 Range (Select Shaft Bore Dia. from Table 1) P.D. O.D. F E L050 L075 L100 L150 Type Number of Teeth Type / Nominal Width EShape (ST Bushing) FShape (SH Bushing) EShape (ST Bushing) FShape (SH Bushing) EShape (ST Bushing) FShape (ST Bushing) (SH Bushing) EShape (ST Bushing) FShape (ST Bushing) MTPLA MTPLK MTPLN MTPL MTPLP 14 L050 *A : 14 *W: 19 L075 *A : 21 *W: 26 L100 *A : 27 *W: 32 L150 *A : 40 *W: 45 E F 8~12 8, 10 10, 11, 12 8, 10 10, 11, 12 - 11, 12 - 42.45 41.68 48 35 15 8~12 8, 10 10, 11, 12 8, 10 10, 11, 12 10, 11 11, 12 11, 12 45.48 44.72 16 10~17 10, 11, 12 10~17 10~15 10~17 10~15 11~17 11~15 48.51 47.75 55 40 17 10~17 10, 11, 12 10~17 10~15 10~17 10~15 11~17 11~15 51.54 50.78 18 10~17 10, 11, 12 10~17 10~17 10~17 10~17 11~17 11~17 54.57 53.81 61 45 19 12~17 12 12~17 12~17 12~17 12~17 12~17 12~17 57.61 56.84 67 50 20 12~17 12 12~17 12~17 12~17 12~17 12~17 12~17 60.64 59.88 67 50 21 12~25 12 12~25 12~25 12~25 12~25 12~25 12~25 63.67 62.91 70 56 22 12~25 12 12~25 12~25 12~25 12~25 12~25 12~25 66.70 65.94 80 60 24 12~30 12 12~30 12~30 12~30 12~30 12~30 12~30 72.77 72.00 87 67 25 12~32 12 12~32 12~32 12~32 12~32 12~32 12~32 75.80 75.04 26 12~32 12 12~32 12~32 12~32 12~32 12~32 12~32 78.83 78.07 28 12~32 12 12~35 12~32 12~35 12~35 12~35 12~35 84.89 84.13 95 75 30 12~32 12 12~42 12~32 12~42 12~35 12~42 12~35 90.96 90.20 99 80 32 12~32 12 12~42 12~32 12~42 12~35 12~42 12~35 97.02 96.26 104 84 34 12~32 12 12~42 12~32 12~42 12~35 12~42 12~35 103.08 102.32 111 90 36 15~32 - 15~42 15~32 15~42 15~35 15~42 15~35 109.15 108.39 123 102 38 15~32 15~42 15~32 15~42 15~35 15~42 15~35 115.21 114.45 127 105 40 15~32 - 15~42 15~32 15~42 15~35 15~42 15~35 121.28 120.51 131 110 42 16~38 16~50 16~32 16~50 16~35 - - 127.34 126.58 135 115 44 16~38 16~50 16~32 16~50 16~35 133.40 132.64 140 120 48 16~38 16~50 16~32 16~50 16~35 145.53 144.77 152 130 50 16~38 16~50 16~32 16~50 16~35 151.60 150.83 160 140 60 16~38 - 16~50 16~32 16~50 16~35 - - 181.91 181.15 190 170 72 16~38 16~50 16~32 16~50 16~35 218.30 217.53 225 200 Table 1: Select Shaft Bore Dia. EElectroless nickel plated bushing decreases maximum allowable torque and allowable thrust load by 20~30%. dH7 Max. Allowable Torque N·m D (L) ST Bushing SH Bushing ST Bushing SH Bushing 8 16 8.5 25.5 24.5 8.5 10 39 18 30 29 10.5 11 43 20 31 30 12 48 23 32 31 14 73 37 35 36 12 15 78 39 36 37 16 83 42 37 38 13 17 88 45 38 39 18 154 48 43 40 14 19 163 49 45 42 20 171 97 46 46 22 186 110 48 47 24 206 121 50 49 25 216 124 52 51 28 353 141 54 53 15.5 30 382 149 57 56 32 412 163 59 58 16.5 35 451 173 63 61 38 686 - 70 - 19 40 725 71 42 757 74 20 45 1490 84 24.5 48 1600 87 50 1660 89 Part Number - Pulley Shape - Shaft Bore Dia. MTPL20L075 - E - 17 Number of Teeth Unit Price MTPLA(x1.0), MTPLK(x1.1), MTPLN(x1.2) MTPL(x1.0), MTPLP(x1.1) L050 L075 L100 L150 L050 L075 L100 L150 EShape FShape EShape FShape EShape FShape EShape FShape EShape FShape EShape FShape EShape FShape EShape FShape 14 - - - - 15 16 17 18 19 20 21 22 24 25 26 28 30 32 34 36 - - 38 - - 40 - - 42 - - - - - - - - - - - 44 - - - 48 - - - 50 - - - 60 - - - - - - - - - - - 72 - - - Configure Online Configure Online Part Number - Pulley Shape - Shaft Bore Dia. - (BMC --- etc) MTPLA20L075 - E - 17 - FC63 Alterations Flange Cut No Flange Single Flange Code FC NFC LFC, RFC Spec. For details of specs., refer to the right-hand page. Price Adder Alterations Surface Treatment Code BMC, BMR Spec. Applies electroless nickel plating on a bushing. (Antirusting treatment is applied to screws.) EElectroless nickel plated bushing decreases allowable torque by 20~30%. BMC: Not RoHS Compliant (Screw: 4137 Alloy Steel Dacrotized Treatment) BMR: RoHS Compliant (Screw: 4137 Alloy Steel GeoMet Coating) Price Adder FC F QFeature: MechaLock Standard Type ( W P.1243) Incorporated Timing Pulleys.It tolerates an average of 1.2 times and 2.5 times greater torque compared to the conventional ST bushing and SH bushing respectively. *Hard Anodize Treatment: Film Hardness 300HV~ Part Number MMaterial SSurface Treatment Belt Width 12.7mm (1/2 inch) Belt Width 19.1mm (3/4 inch) Belt Width 25.4mm (1 inch) Belt Width 38.1mm (1.5 inch) Pulley Flange MechaLock Pulley Flange MechaLock A: 14W : 19 Y: 13 A: 21 W: 26 Y: 14 (18) A: 27 W: 32 Y: 14 (22 · 23.5) A: 40 W: 45 Y: 19 (28 · 32) HPLA_ _L050 HPLA_ _L075 HPLA_ _L100 HPLA_ _L150 7075 Aluminum Alloy 5052 Aluminum Alloy 1045 Carbon Steel Clear Anodize - HPLK_ _L050 HPLK_ _L075 HPLK_ _L100 HPLK_ _L150 Hard Clear Anodize * - HPLN_ _L050 HPLN_ _L075 HPLN_ _L100 HPLN_ _L150 Electroless Nickel Plating - HPLT_ _L050 HPLT_ _L075 HPLT_ _L100 HPLT_ _L150 1045 Carbon Steel Low Carbon Steel 1045 Carbon Steel - HPLM_ _L050 HPLM_ _L075 HPLM_ _L100 HPLM_ _L150 Black Oxide HPLP_ _L050 HPLP_ _L075 HPLP_ _L100 HPLP_ _L150 Electroless Nickel Plating P.D. O.D. R0.53 R0.86 20° 20° 2.13 3.10 Tooth groove dimensions slightly vary according to the number of teeth. Tooth Profile (ISO Standard Rack Dimensions) E Surface treatment may not be applied to shaft bores. EFlange is installed. E For installation D P.1239, for details of MechaLock W P.1243 E Cut Flange for 60 and 72 Toothed Pulleys. EY dimensions in ( ) require the shaft bore diameter of 12 or more. (Pitch: 9.525mm) · Pulley Shape E F O.D. P.D. 1 D d H7 *A * W (L) Shape E D +2 1 D 1 d H7 *A *Y * W Shape F Table 1: Select Shaft Bore Dia. dH7 Max. Allowable Torque (N · m) D1 (L) HPLA, HPLK HPLN, HPLT, HPLM HPLP 8 19.6 16.6 23.5 6 10 27.5 19.6 25.5 12 44.1 36.2 28.5 6.5 14 63.7 50.9 30.5 15 80.4 54.8 31.5 16 83.3 58.8 33.0 17 92.2 76.4 33.5 18 95.1 80.3 34.5 19 98.1 85.2 35.5 20 216.0 183.0 42.0 8 22 255.0 201.0 44.0 24 363.0 252.0 46.0 25 392.0 264.0 47.0 28 441.0 295.0 50.0 8.5 30 500.0 396.0 52.0 32 530.0 423.0 54.0 35 883.0 548.0 62.0 10 40 1079.0 779.0 67.0 45 1285.0 882.0 72.0 50 1706.0 1362.0 77.0 10.5 Part Number Pulley Shape dH7 Range (Select Shaft Bore Dia. from Table 1) P.D. O.D. F E L050 L075 L100 L150 Type Number of Teeth Type / Nominal Width EShape FShape EShape FShape EShape FShape EShape FShape HPLA HPLK HPLN HPLT HPLM HPLP 14 L050 *A : 14 *W: 19 *Y : 13 L075 *A : 21 *W: 26 *Y : 14 (d12~: Y=18) L100 *A : 27 *W: 32 *Y : 14 (d12~22: Y=22) (d24~: Y=23.5) L150 *A : 40 *W: 45 *Y : 19 (d12~32: Y=28) (d35~: Y=32) E F 8, 10 8, 10 8, 10 8, 10 8, 10 8, 10 8, 10 8, 10 42.45 41.68 48 35 15 8, 10 8, 10 8, 10 8, 10 8, 10 8, 10 8, 10 8, 10 45.48 44.72 16 10~14 10 10~14 10~14 10~14 10~14 10~14 10~14 48.51 47.75 55 40 17 10~14 10 10~14 10~14 10~14 10~14 10~14 10~14 51.54 50.78 18 10~16 10 10~16 10~16 10~16 10~16 10~16 10~16 54.57 53.81 61 45 19 12~19 - 12~19 12~19 12~19 12~19 12~19 12~19 57.61 56.84 67 50 20 12~19 - 12~19 12~19 12~19 12~19 12~19 12~19 60.64 59.88 67 50 21 12~19 12~20 12~19 12~20 12~20 12~20 12~20 63.67 62.91 70 56 22 12~19 12~22 12~19 12~22 12~22 12~22 12~22 66.70 65.94 80 60 24 12~19 12~28 12~19 12~28 12~28 12~28 12~28 72.77 72.00 87 67 25 12~19 12~28 12~19 12~28 12~28 12~28 12~28 75.80 75.04 26 12~19 12~28 12~19 12~28 12~28 12~28 12~28 78.83 78.07 28 12~19 12~32 12~19 12~32 12~30 12~32 12~32 84.89 84.13 95 75 30 12~19 12~32 12~19 12~32 12~30 12~32 12~32 90.96 90.20 99 80 32 12~19 12~32 12~19 12~32 12~30 12~32 12~32 97.02 96.26 104 84 34 12~19 12~32 12~19 12~35 12~30 12~35 12~35 103.08 102.32 111 90 36 15~19 15~32 15~19 15~40 15~30 15~40 15~40 109.15 108.39 123 102 38 15~19 15~32 15~19 15~45 15~30 15~45 15~45 115.21 114.45 127 105 40 15~19 - 15~32 15~19 15~45 15~30 15~45 15~45 121.28 120.51 131 110 42 16~19 16~32 16~19 16~50 16~30 16~50 16~45 127.34 126.58 135 115 44 16~19 16~32 16~19 16~50 16~30 16~50 16~45 133.40 132.64 140 120 48 16~19 16~32 16~19 16~50 16~30 16~50 16~45 145.53 144.77 152 130 50 16~19 16~32 16~19 16~50 16~30 16~50 16~45 151.60 150.83 160 140 60 16~19 - 16~32 16~19 16~50 16~30 16~50 16~45 181.91 181.15 190 170 72 16~19 16~32 16~19 16~50 16~30 16~50 16~45 218.30 217.53 225 200 ESelect Shaft Bore Dia. from Table 1. Part Number - Pulley Shape - Shaft Bore Dia. HPLA20L075 - F - 15 Configure Online Configure Online Part Number - Pulley Shape - Shaft Bore Dia. - (BMC --- etc) HPLA20L075 - F - 15 - BMC Alteration Surface Treatment Flange Cut Code BMC, BMR FC Spec. Applies electroless nickel plating on a bushing. (Antirusting treatment is applied to screws.) E Electroless nickel plated bushing decreases allowable torque by 20~30%. BMC:Not RoHS Compliant (Screw: 4137 Alloy Steel Dacrotized Treatment) BMR:RoHS Compliant (Screw: 4137 Alloy Steel GeoMet Coating) Lowers flange by cutting. FC: 0.5mm Increment E No surface treatment is applied on flange circumference. EFC≥(O. D.)+2 EFC≤F-2 Ordering Code FC35 Price Adder FC F Alterations No Flange Single Flange Code NFC LFC, RFC Spec. Flange is not installed. (Flange Included) Flange is installed on either the bushing side (LFC) or the opposite side (RFC) prior to shipping. (Flange 1 pc. Included) Price Adder RFC LFC For Pricing and Days to Ship,Please Configure Online. Number of Teeth Unit Price: 1~9 pc(s). HPLA (x1.0) HPLK (x1.1) HPLN (x1.2) HPLT (x1.0) HPLM (x1.05) HPLP (x1.15) L050 L075 L100 L150 L050 L075 L100 L150 14 15 16 17 18 19 20 21 22 24 25 26 28 30 32 34 36 38 40 42 - - - - - 44 48 50 60 72 dH7 MechaLock Incorporation Charge (+ Body Price) 8 10 12 14 15 16 17 18 19 20 22 24 25 28 30 32 35 40 45 50 EFor orders larger than indicated quantity, please request a quotation.