uxcell #50 Chain Roller Sprocket B Type, 1 Bore 13 Tooth Single Strand... Keyway with 2pcs Set Screws at 90 degrees... Widely used in milling machine, drilling machine or other machinery transmission occasions. 50 Roller Chain with SK1 Attachment Link Every 2nd Pitch x 50ft (Outside Links The product is made of carbon steel, the tooth part high temperature quenching heat treatment, high hardness, wear resistance... 12 Tooth Sprocket 8 Speed Chain Uxcell 12 Tooth Roller Sprocket B Type, #25 Chain, Single Strand 1/4" Pitch, 8mm Bore Black Oxide C45 Carbon Steel With Set Screws For Carbon Steel Chain Sprocket Package Included: You will receive 1pcs chain roller sprocket with set screws. Keyway with 2pcs Set Screws at 90 degrees. The shaft can be fixed well, which is convenient to use. Chain Sprockets are normally mounted in a fixed position on a fixed shaft. Widely used in milling machine, drilling machine or other machinery transmission occasions. 50 Roller Chain Sprocket, Type B, 10 Tooth 5/8 Bore 50BS10-5/8 The product is made of carbon steel, the tooth part high temperature quenching heat treatment, high hardness, wear resistance, long service life, easy to use. Fully black oxide coated, rust resistance.