R20-2RS Ball Bearing | R20-2RS Bearing - 1-1/4"x2-1/4"x0.5" #100 SF Type Sprockets This 100BS9 sprocket features a

This 100BS9 sprocket features a 1-3/16" finished bore with a key-way and two set screws

Outside Diameter: 4

What sets this 6311-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

140C54 Sprocket Dimensions

This 120BS22 sprocket features a 1-1/4" finished bore with a key-way and two set screws

R20-2RS Ball Bearing | R20-2RS Bearing - 1-1/4"x2-1/4"x0.5" #100 SF Type Sprockets This 100BS9 sprocket features aThis R20 2RS ball bearing is a high precision premium quality sealed deep groove 1 1 4"x2 1 4"x0. 5" ball bearing made to ABEC 3 precision standards from AXIS. What sets this R20 2RS 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 has a micron deviation from a nominal of 20. 000mm of 8 micrometers. The