UC207-21 Bearing | 1-5/16" Insert Bearing 120B32 Sprockets ABEC 3 means that the

ABEC 3 means that the bearing itself has a micron deviation from a nominal of 20

UCFB209-27 bearing is a 1-11/16" bore three-bolt normal-duty flange bracket bearing that utilizes set screws to secure to a 1-11/16" shaft

Dimension (A): 146

This 100BS15 sprocket features a 1-1/4" finished bore with a key-way and two set screws

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UC207-21 Bearing | 1-5/16" Insert Bearing 120B32 Sprockets ABEC 3 means that theUC207 21 bearing is a normal duty ball bearing insert made to C3 precision standards and utilizes set screws for securing a 1 5 16" shaft. Our UC207 21 insert bearing has several features: a wide inner ring, steel retainer, anti rotation device, and an inner ring and outer ring made from bearing grade steel to produce a high quality and long lasting bearing. Our UC207 21 bearing is made to industry standards dimensionally for direct interchangeability