120B32 sprockets with a stock bore come with the standard 1-1/2" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes
This 100BS11 sprocket features a 1" finished bore with a key-way and two set screws
100C80 Sprocket Dimensions
Outside Diameter: 32
and precision 48 tooth sprocket that is manufactured to accept a S1 bushing
1310 Taper Lock Bushing X 15/16" Bore Stainless Steel Hollow Pin Roller Chain 120B32 sprockets with a stockThis 1310 taper lock bushing is a high quality, durable, and dependable product that has been precisely manufactured to out last and out perform the competition. 1310 taper lock bushings are used in a wide range of applications including; belt pulleys, sprockets, drum pulleys, drive pulleys, tail pulleys, sheaves, and gears, which are items that we also offer! Additionally this bushing features a 15 16" bore with a standard keyway, for more