40BB17H 17-Tooth 1/2" Bore Ball Bearing Sprocket #40 Chain filter_H35B70 40B60 sprockets with a stock

40B60 sprockets with a stock bore comes with the standard 3/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

Dimension (D): 1-3/8"

have 18 teeth

D200B12 double roller chain sprockets have 12 teeth

UCFC206-18 Bearing Dimensions

40BB17H 17-Tooth 1/2" Bore Ball Bearing Sprocket #40 Chain filter_H35B70 40B60 sprockets with a stock40BB17H idler sprocket is categorized as a ball bearing idler sprocket due to the ball bearing inserted. This 40BB17H idler sprocket features 17 hardened teeth, a high quality ball bearing with a 1 2" Bore, and fully meets all ANSI Standards. Additionally this 40BB17H idler sprocket was engineered to be extremely durable and high performance, along with being manufactured out of a high quality steel and components to create an idler sprocket with