866540 Spherical roller bearings, open design

Version with cylindrical and tapered bore

Spherical roller bearings have two rows of rollers, a common sphered outer ring raceway and two inner ring raceways inclined at an angle to the bearing axis. The centre point of the sphere in the outer ring raceway is at the bearing axis. Therefore, the bearings are self-aligning and insensitive to misalignment of the shaft relative to the housing, which can be caused, for example, by shaft deflection. Spherical roller bearings are designed to accommodate heavy radial loads, as well as heavy axial loads in both directions.
Boundary dimensions: DIN 635-2:1984 / DIN 5416:1990 / ISO 2982-1:1995

Supplementary designations:
E Optimised internal construction
K Tapered bore, taper 1:12
C3 Radial internal clearance greater than normal