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It utilizes set-screws for locking onto a 17mm shaft and features a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing
Dimension (dk): 73mm
Bearing Size: 6217-ZZ
Something that sets this 2052B8 sprocket apart from others is that it is Black Oxide Finished
This 2BK190 Pulley 1-7/16" bore is directly interchangeable with other manufacturers v-belt pulleys
50BS25 Sprocket With 1-7/16" Finished Bore filter_35B26-SB It utilizes set-screws for lockingThis 50BS25 sprocket featured a 1 7 16" finished bore with a key way and two set screws. It is a durable, high quality, and precision sprocket with hardened teeth. Sprockets that have hardened teeth last longer and are much more durable than those that don't. Something else that is notable about this sprocket is that it fully meets all ANSI Standards, which insures proper contact between the #50 roller chain and sprocket thus preventing premature wear
