UCTB209 Bearing | 45mm 2-Bolt Tapped Base Bearing Hollow Pin Roller Chain What sets this 6309-2RS bearing

What sets this 6309-2RS bearing apart from others is the ABEC 3 precision standard that this bearing is made to

Hub Diameter: 37mm

100B39 sprockets with a stock bore come with the standard 1-1/4" inside diameter hole with no keyway or setscrews and can be easily machine bored to custom sizes

Our superior UCFCS210-30 bearing with a 1-7/8" bore is equipped with a premium C3 precision insert bearing housed within a high-strength solid-base cast-iron housing

160B28H 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

UCTB209 Bearing | 45mm 2-Bolt Tapped Base Bearing Hollow Pin Roller Chain What sets this 6309-2RS bearingUCTB209 bearing is a 45mm bore tapped base normal duty mounted bearing unit that utilizes set screws to secure to a 45mm shaft. UCTB209 pillow block bearings have a unique housing designed for narrow applications with radial loads acting in the direction of the support surface. Our superior UCTB209 bearing with a 45mm bore is equipped with a premium C3 precision insert bearing housed within a high strength solid base cast iron housing. Additionally,