Timing Pulley and Belt Calculator

Free online timing pulley and belt calculator. Select the tooth profile, input the number of teeth of the timing pulleys and the belt, then automatically calculate the pitch diameter, outer diameter, belt length, and center distance. Tooth profiles include MXL, XXL, XL, L, H, XH, XXH, T2.5, T5, T10, T20, HTD2M, HTD3M, HTD5M, HTD8M, HTD14M, HTD20M, S2M, S3M, S4.5M, S5M, S8M, S14M, 1.5GT, 2GT, 3GT, 5GT, P2M, P3M, P5M, P8M, P14M, AT3, AT5, AT10, AT20.

1. Select Tooth Profile





2. Input Number of Pulleys Teeth

3. Input Number of Belt Teeth

4. Center Distance and Ratio

Timing Pulley and Belt Calculator

Timing pulley and belt with parameters


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