50BS55 55-Tooth Sprocket #50 Chain, 1-15/16" Bore UEP200 2-Bolt Tru-Loc Pillow Block Bearings This 48A roller chain is

This 48A roller chain is manufactured dimensionally to ANSI B29

Hub Diameter: 13mm

This 40BS29 sprocket featured a 1-1/4" finished bore with a key-way and two set screws

For more information on a double groove 2B5V46 sheave

40A42 sprockets with a stock bore comes with a 23/32" inside diameter plain hole and can be easily machine bored to custom sizes

50BS55 55-Tooth Sprocket #50 Chain, 1-15/16" Bore UEP200 2-Bolt Tru-Loc Pillow Block Bearings This 48A roller chain isThis 50BS55 sprocket features a 1 15 16" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that fully meets all ANSI Standards which insures proper contact between the #50 roller chain and sprocket thus preventing premature wear or breakage. This sprocket is also black oxide coated which increases resistance to the environment and will prevent early rust build up. We also offer stock bore