6903-ZZ Ball Bearing | 6903-ZZ Bearing - 17x30x7 Coupling Roller Chain 100B39 sprockets with a stock

100B39 sprockets with a stock bore come with the standard 1-1/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

Pitch Diameter (B/ 5L): 15

the 5314-ZZ bearing features raceways that are precision honed to a superb finish

This 1B124SDS sheave features one groove

5521000-ZZ Bearing Dimensions

6903-ZZ Ball Bearing | 6903-ZZ Bearing - 17x30x7 Coupling Roller Chain 100B39 sprockets with a stockThis 6903 ZZ ball bearing is a high precision premium quality deep groove shielded 17x30x7 ball bearing made to ABEC 3 precision standards from AXIS. What sets this 6903 ZZ bearing apart from others is the ABEC 3 precision standard that this bearing is made to, the grade 10 balls used, and the superb electric motor quality rating (EMQ). ABEC 3 means that the bearing itself has a micron deviation from a nominal of 20. 000mm of 8 micrometers. The