china taper bush
The taperlock clamps offer all varieties of advantages. In addition to straightforward assembly and disassembly, a clamping box is normally value-effective compared with other options. Typically, with a worn sprocket, the clamp can be reused.
Taper bushes kinds:
TB1008 TB3020
TB1108 TB3030
TB1210 
TB3525
TB1215 TB3535
TB1310 TB4030
TB1610 TB4040
TB1615 TB4535
TB2012 TB4545
TB2517 TB5040
……….. nore dimension you should inquire
Need to know more about china taper bush? Check out https://www.ever-power.net/knowledge/taper-lock-bush-split-bushings/ for more details