【Size&Package】1/4" pitch, 20 teeth, 18mm round bore, more size refer to pics. Package include:1 x Chain Sprocket, 2 x Set Screws. 【Material】Made by c45 carbon steel, the tooth part high frequency quenching heat treatment, high hardness, wear resistance, long service life, easy to use. Fully black oxide coated, corrosion resistance. 【Feature】Single strand sprocket with one set of teeth around the circumference for applications where a single chain can support the torque and load. 【Type B】Type B sprocket with a hub project on one side to accommodate various types of bushings to help prevent sprocket from slipping on the shaft. 【Application】Widely used in various industrial scenarios, suitable for power transmission in harsh environments.such as milling machine, drilling machine or other machinery transmission occasions.
Chain Sprockets are normally mounted in a fixed position on a fixed shaft. Keyway with 2pcs Set Screws at 90 degrees. The shaft can be fixed well, which is convenient to use.

The chain sprocket should not rotate at a greater speed than is allowable for drive sprockets of the same size. Every roller chain sprocket comes with strong teeth that can latch onto the chain. It is suggested that chain sprockets have at least three teeth in mesh with the chain.