... 5. OEM Reach Jiayuan Synchronous Drive : 1.Straight-bore: MXL,XL,L,H,T2.5,T5,T10,AT5,AT10,3M,5M ... ,H,XH,5M,8M,14M;3.Timing pulley bar: MXL,XL,L,T2.5,T5,T10,AT5,AT10,3M,5M,8M ... , Zinc Plating,Phosphatization;6.Teeth Number from 9 to 216; O.D. from 10mm to 1000mm; Advantages:1. Rich experience in cooperation ... . lowest radial load on it's suppor Synchronous Drive MXL,XL,L,H