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the 12B-4 roller chain is pre-loaded to a specific amount to reduce initial and long-term elongation
UEF211-32 bearings are commonly used in applications such as
Our superior UCF212 bearing with a 60mm bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing
3L Minimum Pitch: 5
Sprocket Size: 120A80
40BS31 Sprocket With 1-3/16" Finished Bore 2VP42 Pulley the 12B-4 roller chain isThis 40BS31 sprocket features a 1 3 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 #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
