... . OEM Reach Jiayuan Synchronous Drive : 1.Straight-bore: MXL,XL,L,H,T2.5,T5,T10,AT5,AT10,3M,5M,8M ... ,14M;2.Taper-bore: L,H,XH,5M,8M,14M;3.Timing pulley bar: MXL ... ,XL,L,T2.5,T5,T10,AT5,AT10,3M,5M,8M;4 ... radial load on it's suppor Synchronous Drive MXL,XL,L,H