... Collar ESC-Series Bore Sizes: 1/2" through End Stop shaft Collars Fits over rail assembly for precision shafting.End Stop ... CollarESC-SeriesBore Sizes: 1/2" throughYueqing Bethel Shaft Collar Manufacturing Co.,Ltd. Was established in 1972, the former ... , XTH, XTB, QD, BM Style Split Taper Bushings, Ductile iron shaft collars and all kinds of Weld-on Hubs, Taper-Licked ...