40BS42 High-Performance Sprocket 1-1/2" 12mm Stock Bore 12B SA1 Attachment Dimensions

12B SA1 Attachment Dimensions

Dynamic Load Rating: 590 LBS

This 120A21 sprocket is a durable

Dimension (d): 1-3/8"

Shaft Diameter (d): 1-7/16"

40BS42 High-Performance Sprocket 1-1/2" 12mm Stock Bore 12B SA1 Attachment DimensionsThis 40BS42 sprocket features a 1 1 2" 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