System of Measurement System of Measurement |
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Belt Trade Size Belt Trade Size |
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Teeth Location Teeth Location |
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![]() | Teeth on One Side |
Number of Teeth Number of Teeth |
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Material Material |
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Teeth Shape Teeth Shape |
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![]() | Trapezoidal |
Reinforcement Material Reinforcement Material |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Teeth Finish Teeth Finish |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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XL Series Timing Belts


Belts combine neoprene with fiberglass reinforcement for quiet operation with high strength. All are XL series (extra light) and have trapezoidal teeth. The teeth are nylon coated to protect the wear surface and minimize friction.
For technical drawings and 3-D models, click on a part number.
XL Series Dust-Free Timing Belts


Abrasion-resistant urethane means these belts don’t create dust while they run. They are XL series (extra light) and have trapezoidal teeth. Reinforced with Kevlar or steel, both materials provide very high strength, low stretch, and excellent shock resistance. Kevlar has higher shock resistance than steel.
For technical drawings and 3-D models, click on a part number.
Belt Trade Number | Outer Circle | Number of Teeth | Pitch | Material | Reinforcement Material | Color | Temperature Range, ° F | Each | |
1/4" Wd. | |||||||||
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140XL025 | 14" | 70 | 0.200" | Urethane | Kevlar | Black | -30° to 180° | 00000000 | 00000 |
5/16" Wd. | |||||||||
140XL031 | 14" | 70 | 0.200" | Urethane | Kevlar | Black | -30° to 180° | 00000000 | 0000 |
3/8" Wd. | |||||||||
140XL037 | 14" | 70 | 0.200" | Urethane | Kevlar | Black | -30° to 180° | 00000000 | 0000 |
XL Series Heat-Resistant Timing Belts


Resisting temperatures up to 400° F, silicone can take the heat. Belts have Kevlar reinforcement, which has very high strength, low stretch, and excellent shock resistance. All are XL series (extra light) and have trapezoidal teeth.
For technical drawings and 3-D models, click on a part number.