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140B20H sprockets with a stock bore comes with the standard 1-1/2" inside diameter hole with no keyway or set screws and can be easily machine bored to custom sizes
Weight With Hub: 535lbs
140BTB26 Sprocket Dimensions
100BS17 2" Finished Bore Sprocket Dimensions
6801 Ball Bearing | 6801 Bearing - 12x21x5 12B Metric Chain Master Links 140B20H sprockets with a stockThis 6801 ball bearing is a high precision premium quality deep groove 12x21x5 ball bearing made to ABEC 3 precision standards from AXIS. What sets this 6801 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
