40BS39 Sprocket With 5/8" Finished Bore 1.3125" Stock Bore Sprocket Size: 25B48

Sprocket Size: 25B48

Part #: UCFBS 202-10

What separates this 35V670SK sheave from the others is that it is made using a high strength cast iron

UCFB210 bearing is a 50mm bore three-bolt normal-duty flange bracket bearing that utilizes set screws to secure to a 50mm shaft

Sprocket Size: 06B21

40BS39 Sprocket With 5/8" Finished Bore 1.3125" Stock Bore Sprocket Size: 25B48This 40BS39 sprocket features a 5 8" 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,