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System of Measurement System of Measurement |
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Number of Teeth Number of Teeth |
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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 |
Reinforcement Material Reinforcement Material |
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Teeth Shape Teeth Shape |
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![]() | Trapezoidal |
Material Material |
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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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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Teeth Finish Teeth Finish |
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L Series Timing Belts


Neoprene is reinforced with fiberglass for quiet operation with high strength. Belts are L series (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.
L Series Dust-Free Timing Belts


Urethane has excellent abrasion resistance, so these belts don’t create dust while they run. They are L series (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 | Each | |
1/2" Wd. | |||||||||
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300L050 | 30" | 80 | 0.375" | Urethane | Kevlar | Black | -30° to 180° | 00000000 | 000000 |
300L050US | 30" | 80 | 0.375" | Urethane | Steel | Gray | -13° to 176° | 00000000 | 00000 |
3/4" Wd. | |||||||||
300L075 | 30" | 80 | 0.375" | Urethane | Kevlar | Black | -30° to 180° | 00000000 | 00000 |
300L075US | 30" | 80 | 0.375" | Urethane | Steel | Gray | -13° to 176° | 00000000 | 00000 |
1" Wd. | |||||||||
300L100 | 30" | 80 | 0.375" | Urethane | Kevlar | Black | -30° to 180° | 00000000 | 00000 |
300L100US | 30" | 80 | 0.375" | Urethane | Steel | Gray | -13° to 176° | 00000000 | 00000 |