R4A-2RS Ball Bearing | R4A-2RS Bearing - 1/4"x3/4"x0.2812" 1VP60 Pulley 100R70 sprockets are made to

100R70 sprockets are made to accept a R1 size taper bushing which we also stock with a wide range of bore sizes

120A26 sprockets with a stock bore comes with a 1-1/2" inside diameter plain hole and can be easily machine bored to custom sizes

4mm pitch 16B chain and conforms to ISO and DIN dimensional standards for direct interchangeability

This 5203 Bearing is a high-precision premium double-row angular contact ball bearing made to ABEC 3 precision standards from AXIS

Sprocket Size: 120B20

R4A-2RS Ball Bearing | R4A-2RS Bearing - 1/4"x3/4"x0.2812" 1VP60 Pulley 100R70 sprockets are made toThis R4A 2RS ball bearing is a high precision premium quality sealed deep groove 1 4"x3 4"x0. 2812" ball bearing made to ABEC 3 precision standards from AXIS. What sets this R4A 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