10B26 sprockets with a stock bore comes with the standard 20 millimeter inside diameter hole with no key-way or set screws and can be easily machine bored to custom sizes
We supply this attachment as a standard connecting link (master link) or assembled onto the 08B roller chain in specific increments
This 120BS30 sprocket features a 2" finished bore with a key-way and two set screws
120R45 sprockets are made to accept a R2 size taper bushing which we also stock with a wide range of bore sizes
1210 Taper Lock Bushing X 5/8" Bore Sprocket Bore 10B26 sprockets with a stockThis 1210 taper lock bushing is a high quality, durable, and dependable product that has been precisely manufactured to out last and out perform the competition. 1210 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 5 8" bore with a standard keyway, for more information