| ISO 5294:1989 | Synchronous belt drives - Pulleys | 
| ISO 5295:1987 | Synchronous belts - calculation of power rating | 
| ISO 5296:1989 | Synchronous belt drives - Belts | 
| DIN 7721 | Synchronous belt drives, metric pitch | 
| ANSI/RMA IP-24 | Synchronous Belts | 
| JIS B 1856 | Synchronous Belts Drives - Pulleys | 
| JIS K 6372 | Synchronous Belts for General Power Transmissions |