5211-ZZ Bearing | AXIS 5211-ZZ Ball Bearing - 55x100x1-5/16" 100B27 Sprockets Something that sets this 2040B21

Something that sets this 2040B21 sprocket apart from others is that it is Black Oxide Finished

Nickel - 8

2050B25 double pitch sprockets are manufactured specifically for C2050 double pitch roller chain

120BS23 2" Finished Bore Sprocket Dimensions

Overall Width of Connecting Link (a): 25

5211-ZZ Bearing | AXIS 5211-ZZ Ball Bearing - 55x100x1-5/16" 100B27 Sprockets Something that sets this 2040B21This 5211 ZZ Bearing is a high precision premium shielded double row angular contact ball bearing made to ABEC 3 precision standards from AXIS. What sets this 5211 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 standard