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This 6903-2RS ball bearing is a high-precision premium quality sealed deep groove 17x30x7 ball bearing made to ABEC 3 precision standards from AXIS
Our superior UCF206 bearing with a 30mm bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing
Inner Plate Height (h2): 11
steel retainer
Limiting Speed (Grease): 2200 RPM
35BS21 Sprocket With 5/8" Finished Bore 2AK21 Pulley This 6903-2RS ball bearing isThis 35BS21 sprocket features a 5 8" finished bore including a key way and two setscrews. It is a durable, high quality, and precision sprocket that has 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 #35 roller chain and sprocket which prevents premature
