This standard specifies toothed pulleys (hereinafter referred to as pulleys) that mesh with circular toothed belts (hereinafter referred to as belts) specified in JIS B 1857-1. However, toothed pulleys for automobiles and circular toothed toothed belts for general use are excluded.
JIS B 1857-2:2001 history
2022JIS B 1857-2 AMD 1:2022 Curvilinear toothed synchronous belt drive systems for general power transmission -- Part 2: Pulley (Amendment 1)
2015JIS B 1857-2:2015 Curvilinear toothed synchronous belt drive systems for general power transmission -- Part 2: Pulley
2001JIS B 1857-2:2001 Curvilinear toothed synchronous belt drive systems for general power transmission -- Part 2: Pulley