6320 Ball Bearing | 6320 Bearing - 100x215x47 37-Tooth Sprocket This 100BS21 sprocket features a

This 100BS21 sprocket features a 2-15/16" finished bore with a key-way and two set screws

100B12H sprockets with a stock bore comes with the standard 1" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes

Besides 1VP50 pulleys with a 1" bore we also stock a full line of high-quality performance 3L

Sprocket Size: 100SDS12

Sprocket Size: 100Q12

6320 Ball Bearing | 6320 Bearing - 100x215x47 37-Tooth Sprocket This 100BS21 sprocket features aThis 6320 ball bearing is a high precision premium quality deep groove 100x215x47 ball bearing made to ABEC 3 precision standards from AXIS. What sets this 6320 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 standard ABEC 1