21310RHC3/W33 bearing is Precision Spherical Roller Bearing Steel Cage, C3 Internal Clearance and lubrication Groove
Sizes: ID 50mm x OD 110mm x W 27mm
Match#: 21310CC/W33, 21310CAW33, 21310EC.W33
A spherical roller bearing is a rolling-element bearing that permits rotation with low friction, and permits angular misalignment. Typically these bearings support a rotating shaft in the bore of the inner ring that may be misaligned in respect to the outer ring.