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System of Measurement
Belt Trade Size
Number of Teeth
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Tooth Profile
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Reinforcement Material
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Export Control Classification Number (ECCN)
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About Belts
Measure your old V-belt, timing belt, or pulleys to find the right belt replacement if you don’t know the trade size.
Timing Belts
Wd. | Outer Circle | No. of Teeth | Pitch | Reinforcement Material | Tooth Finish | Temp. Range, ° F | Belt Trade No. | Each | |||
|---|---|---|---|---|---|---|---|---|---|---|---|
Neoprene | |||||||||||
XL Trade Size | |||||||||||
| 1/4" | 10" | 50 | 0.200" | Fiberglass | Nylon Coated | -22 to 212 | 100XL025 | 6484K12 | 00000 | ||
| 5/16" | 10" | 50 | 0.200" | Fiberglass | Nylon Coated | -13 to 185 | 100XL031 | 6484K301 | 0000 | ||
| 3/8" | 10" | 50 | 0.200" | Fiberglass | Nylon Coated | -22 to 212 | 100XL037 | 6484K22 | 0000 | ||
Abrasion-Resistant Urethane Rubber | |||||||||||
XL Trade Size | |||||||||||
| 1/4" | 10" | 50 | 0.200" | Aramid | — | -30 to 180 | 100XL025 | 1679K117 | 0000 | ||
| 5/16" | 10" | 50 | 0.200" | Aramid | — | -30 to 180 | 100XL031 | 1679K118 | 0000 | ||
| 3/8" | 10" | 50 | 0.200" | Aramid | — | -30 to 180 | 100XL037 | 1679K119 | 0000 | ||
High-Temperature Silicone Rubber | |||||||||||
XL Trade Size | |||||||||||
| 1/4" | 10" | 50 | 0.200" | Aramid | — | -40 to 400 | 100XL025 | 51514T112 | 00000 | ||
| 3/8" | 10" | 50 | 0.200" | Aramid | — | -40 to 400 | 100XL037 | 51514T312 | 00000 | ||
| 1/2" | 10" | 50 | 0.200" | Aramid | — | -40 to 400 | 100XL050 | 51514T512 | 00000 | ||



























