Material Material |
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OD OD |
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Teeth Shape Teeth Shape |
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![]() | Trapezoidal |
Pitch Diameter Pitch Diameter |
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Bore Type Bore Type |
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![]() | Finished |
Mount Type Mount Type |
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![]() | Press Fit |
Fabrication Fabrication |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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XL Series Lightweight Timing Belt Pulleys
Acetal and aluminum construction makes these pulleys useful in weight-sensitive applications. All are XL series (extra light) and have trapezoidal teeth. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.





Hub | |||||||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
OD | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Number of Flanges | Fabrication | Material | Material | Dia. | Each | |
For 3/8" Max. Belt Wd. | |||||||||||||||
Inch | |||||||||||||||
0.88" | 10 | 0.200" | 3/16" | Finished | 0.5" | 0.625" | 0.875" | 0.637" | 2 | Molded | Acetal | Aluminum | 0.5" | 00000000 | 00000 |
0.94" | 11 | 0.200" | 3/16" | Finished | 0.5" | 0.625" | 0.875" | 0.7" | 2 | Molded | Acetal | Aluminum | 0.5" | 00000000 | 0000 |
1" | 12 | 0.200" | 3/16" | Finished | 0.5" | 0.625" | 0.875" | 0.764" | 2 | Molded | Acetal | Aluminum | 0.5" | 00000000 | 0000 |
1.13" | 14 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.875" | 0.891" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 00000 |
1.19" | 15 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.875" | 0.955" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 00000 |
1.25" | 16 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.875" | 1.019" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 00000 |
1.38" | 18 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.875" | 1.146" | 2 | Molded | Acetal | Aluminum | 0.75" | 00000000 | 00000 |
1.5" | 20 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.875" | 1.273" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
1.56" | 21 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.875" | 1.337" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
1.63" | 22 | 0.200" | 1/4" | Finished | 0.5" | 0.625" | 0.875" | 1.401" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
1.75" | 24 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 1.528" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
1.88" | 26 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 1.655" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
2" | 28 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 1.783" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
2.13" | 30 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 1.91" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
2.25" | 32 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 2.037" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
2.53" | 36 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 2.292" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
2.75" | 40 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 2.546" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
2.91" | 42 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 2.674" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
3.03" | 44 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 2.801" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
3.28" | 48 | 0.200" | 5/16" | Finished | 0.5" | 0.625" | 0.875" | 3.056" | 2 | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
3.8" | 60 | 0.200" | 5/16" | Finished | 0.5" | 0.575" | 0.875" | 3.82" | __ | Molded | Acetal | Aluminum | 0.875" | 00000000 | 00000 |
Metric | |||||||||||||||
22mm | 10 | 5.000mm | 6mm | Finished | 13mm | 16mm | 22mm | 16.18mm | 2 | Molded | Acetal | Aluminum | 13mm | 0000000 | 00000 |
24mm | 11 | 5.000mm | 6mm | Finished | 13mm | 16mm | 22mm | 17.78mm | 2 | Molded | Acetal | Aluminum | 13mm | 0000000 | 00000 |
25mm | 12 | 5.000mm | 6mm | Finished | 13mm | 16mm | 22mm | 19.41mm | 2 | Molded | Acetal | Aluminum | 13mm | 0000000 | 00000 |
28mm | 14 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 22.63mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
30mm | 15 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 24.26mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
32mm | 16 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 25.88mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
35mm | 18 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 29.11mm | 2 | Molded | Acetal | Aluminum | 19mm | 0000000 | 00000 |
38mm | 20 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 32.33mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
40mm | 21 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 33.96mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
41mm | 22 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 35.59mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
44mm | 24 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 38.81mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
48mm | 26 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 42.04mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
51mm | 28 | 5.000mm | 8mm | Finished | 13mm | 16mm | 22mm | 45.29mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
54mm | 30 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 48.51mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
57mm | 32 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 51.74mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
64mm | 36 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 58.22mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
70mm | 40 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 64.67mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
74mm | 42 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 67.92mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
77mm | 44 | 5.000mm | 10mm | Finished | 13mm | 16mm | 22mm | 71.15mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
83mm | 48 | 5.000mm | 12mm | Finished | 13mm | 16mm | 22mm | 77.62mm | 2 | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
97mm | 60 | 5.000mm | 12mm | Finished | __ | 13mm | 22mm | 97.03mm | __ | Molded | Acetal | Aluminum | 22mm | 0000000 | 00000 |
MXL Series Lightweight Timing Belt Pulleys
Made from polycarbonate, these pulleys are useful in applications with weight constraints. All are MXL series (miniature extra light) and have trapezoidal teeth. The teeth match up with the grooves along the inside diameter of a timing belt in order to move components forward or backward. Select a pulley with a maximum belt width that’s the same or larger than your timing belt width.
For technical drawings and 3-D models, click on a part number.













OD | Number of Teeth | Pitch | For Shaft Dia. | Bore Type | Inside Wd. | Outside Wd. | Overall Wd. | Pitch Dia. | Fabrication | Material | Hub Dia. | Each | |
1 Flange | |||||||||||||
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For 1/4" Max. Belt Wd. | |||||||||||||
0.42" | 10 | 0.080" | 3/32" | Finished | 0.25" | 0.438" | 0.688" | 0.255" | Molded | Polycarbonate | 0.438" | 0000000 | 00000 |
0.47" | 12 | 0.080" | 3/32" | Finished | 0.25" | 0.438" | 0.688" | 0.306" | Molded | Polycarbonate | 0.438" | 0000000 | 0000 |
0.53" | 14 | 0.080" | 1/8" | Finished | 0.25" | 0.438" | 0.688" | 0.357" | Molded | Polycarbonate | 0.438" | 0000000 | 0000 |
0.55" | 15 | 0.080" | 1/8" | Finished | 0.25" | 0.438" | 0.688" | 0.382" | Molded | Polycarbonate | 0.438" | 0000000 | 0000 |
0.58" | 16 | 0.080" | 1/8" | Finished | 0.25" | 0.438" | 0.688" | 0.407" | Molded | Polycarbonate | 0.438" | 0000000 | 0000 |
For 6 mm Max. Belt Wd. | |||||||||||||
11mm | 10 | 2.030mm | 3mm | Finished | 9.5mm | 15.9mm | 17.5mm | 6.5mm | Molded | Polycarbonate | 11mm | 0000000 | 0000 |
13mm | 14 | 2.030mm | 4mm | Finished | 9.5mm | 15.9mm | 17.5mm | 9.1mm | Molded | Polycarbonate | 11mm | 0000000 | 0000 |
16mm | 18 | 2.030mm | 6mm | Finished | 8mm | 11.2mm | 17.5mm | 11.6mm | Molded | Polycarbonate | 13mm | 0000000 | 0000 |
16mm | 18 | 2.030mm | 8mm | Finished | 8mm | 9.6mm | 9.6mm | 11.6mm | Molded | Polycarbonate | __ | 0000000 | 0000 |
17mm | 20 | 2.030mm | 8mm | Finished | 8mm | 9.6mm | 9.6mm | 12.9mm | Molded | Polycarbonate | __ | 0000000 | 00000 |
24mm | 30 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 19.4mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
25mm | 32 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 11.2mm | 20.7mm | Molded | Polycarbonate | __ | 0000000 | 00000 |
69mm | 100 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 64.7mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
88mm | 130 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 84.1mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
2 Flanges | |||||||||||||
For 1/4" Max. Belt Wd. | |||||||||||||
0.63" | 18 | 0.080" | 3/16" | Finished | 0.28" | 0.438" | 0.688" | 0.458" | Molded | Polycarbonate | 0.5" | 0000000 | 0000 |
0.68" | 20 | 0.080" | 3/16" | Finished | 0.28" | 0.438" | 0.688" | 0.509" | Molded | Polycarbonate | 0.5" | 0000000 | 0000 |
0.7" | 21 | 0.080" | 3/16" | Finished | 0.28" | 0.438" | 0.688" | 0.535" | Molded | Polycarbonate | 0.5" | 0000000 | 0000 |
0.73" | 22 | 0.080" | 3/16" | Finished | 0.28" | 0.438" | 0.688" | 0.56" | Molded | Polycarbonate | 0.5" | 000000 | 0000 |
0.78" | 24 | 0.080" | 3/16" | Finished | 0.28" | 0.438" | 0.688" | 0.611" | Molded | Polycarbonate | 0.5" | 0000000 | 0000 |
0.88" | 28 | 0.080" | 1/4" | Finished | 0.28" | 0.438" | 0.688" | 0.713" | Molded | Polycarbonate | 0.688" | 0000000 | 0000 |
0.93" | 30 | 0.080" | 1/4" | Finished | 0.28" | 0.438" | 0.688" | 0.764" | Molded | Polycarbonate | 0.688" | 0000000 | 0000 |
1.09" | 36 | 0.080" | 1/4" | Finished | 0.28" | 0.438" | 0.688" | 0.917" | Molded | Polycarbonate | 0.688" | 0000000 | 0000 |
1.19" | 40 | 0.080" | 1/4" | Finished | 0.28" | 0.438" | 0.688" | 1.019" | Molded | Polycarbonate | 0.688" | 0000000 | 0000 |
1.24" | 42 | 0.080" | 1/4" | Finished | 0.28" | 0.438" | 0.688" | 1.07" | Molded | Polycarbonate | 0.688" | 0000000 | 0000 |
1.7" | 60 | 0.080" | 1/4" | Finished | 0.28" | 0.438" | 0.688" | 1.53" | Molded | Polycarbonate | 0.688" | 0000000 | 0000 |
For 6 mm Max. Belt Wd. | |||||||||||||
11mm | 10 | 2.030mm | 3mm | Finished | 9.5mm | 15.9mm | 17.5mm | 6.5mm | Molded | Polycarbonate | 11mm | 0000000 | 00000 |
13mm | 14 | 2.030mm | 4mm | Finished | 9.5mm | 15.9mm | 17.5mm | 9.1mm | Molded | Polycarbonate | 11mm | 0000000 | 00000 |
14mm | 15 | 2.030mm | 4mm | Finished | 9.5mm | 15.9mm | 17.5mm | 9.7mm | Molded | Polycarbonate | 11mm | 0000000 | 00000 |
15mm | 16 | 2.030mm | 4mm | Finished | 9.5mm | 15.9mm | 17.5mm | 10.3mm | Molded | Polycarbonate | 11mm | 0000000 | 00000 |
16mm | 18 | 2.030mm | 6mm | Finished | 8mm | 11.2mm | 17.5mm | 11.6mm | Molded | Polycarbonate | 13mm | 0000000 | 00000 |
16mm | 18 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 11.2mm | 11.6mm | Molded | Polycarbonate | __ | 0000000 | 00000 |
17mm | 20 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 11.2mm | 12.9mm | Molded | Polycarbonate | __ | 0000000 | 00000 |
21mm | 26 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 16.8mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
24mm | 30 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 19.4mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
28mm | 36 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 11.2mm | 23.3mm | Molded | Polycarbonate | __ | 0000000 | 00000 |
28mm | 36 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 23.3mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
30mm | 40 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 11.2mm | 25.9mm | Molded | Polycarbonate | __ | 0000000 | 00000 |
30mm | 40 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 25.9mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
43mm | 60 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 38.8mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
46mm | 65 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 42mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
63mm | 90 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 58.2mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
82mm | 120 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 77.6mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |
88mm | 130 | 2.030mm | 8mm | Finished | 8mm | 11.2mm | 17.5mm | 84.1mm | Molded | Polycarbonate | 17.5mm | 0000000 | 00000 |