Rexnord MA5217 A87

Rexnord MA5217 A87 is the Link-Belt MA5217 inner ring for cylindrical roller bearings in Rexnord’s Series 5200 family. This 85 mm bore, straight-bore inner race is a plain cylindrical inner ring (A) designed to mount directly to a shaft and pair with an outer ring and rollers to complete a cylindrical roller bearing assembly. The inner ring’s raceway outside diameter is 102.01 mm and its width is 49.21 mm, yielding a compact yet rigid radial element; it is listed as a Wide Ring Width (5) with a light Series Weight (2). Net weight is 2.07 lb, according to Rexnord catalog data, and the part is labeled MA5217 INNER RG to denote an inner-ring component rather than a full bearing. With direct shaft mounting, this inner ring provides the bearing’s inner race support in a cylindrical roller bearing arrangement, enabling accurate radial alignment and load distribution in machinery that uses Link-Belt cylindrical roller bearings.