Material ASTM 1045,Screws quantity:3(1/4-20UNCX1-3/8),Screws quantity:1(1/4-20UNCX3/8)This screw is used for keyway locking
The oxidation blackening treatment applied to the surface of a bushing exhibits excellent rust prevention capability.
which are mainly used for locking the SH-type taper pulley and Sheaves
Installation: Insert the bushing into the pulley, aligning the smooth hole of the bushing with the threaded hole of the pulley, or align the smooth hole of the pulley with the threaded hole of the bushing. When you tighten the bolt, it will securely fix it onto the shaft