40BS56 Sprocket With 1" Finished Bore 16mm Stock Bore This 20A roller chain is

This 20A roller chain is manufactured dimensionally to ANSI B29

Chromium -18

Bearing Size: 6803-ZZ

Bore: 25mm

40BS56 Sprocket With 1" Finished Bore 16mm Stock Bore This 20A roller chain isThis 40BS56 sprocket features a 1" 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 #40 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 sprockets,