Spherical Roller Bearings SKF 21310 E

The SKF 21310 E spherical roller bearing, measuring 50x110x27 mm, can accommodate high radial loads as well as misalignment.

The 21310 E self-aligning roller bearing is an open roller bearing designed for demanding industrial applications involving combined loads. With a bore of 50 mm, an outer diameter of 110 mm and a width of 27 mm, the component fits onto shafts with corresponding dimensions. Thanks to its construction from standard rolling-bearing steel (100Cr6) with a sheet steel cage, the unit retains its dimensional stability. The permissible temperature range is between –30 and +200 degrees.

What loads does the 21310 E spherical roller bearing compensate for?

This self-aligning roller bearing automatically compensates for misalignment between the shaft and housing caused by manufacturing or loading. The symmetrically arranged rollers absorb high radial forces as well as axial forces acting on both sides. Typical applications include shaft mountings where deflection or misalignment may occur. Thanks to its open design, the bearing can be integrated into lubricated housings, whilst the standard radial clearance is optimised for normal operating temperatures and standard fits.

What is the function of the lubrication groove and P5 running accuracy?

The outer ring features a circumferential lubrication groove and lubrication holes. This design facilitates relubrication during operation, as lubricant is fed directly between the roller sets. In addition to dimensional accuracy PN, the bearing features the tighter running accuracy P5. This ensures precise concentricity during operation. During assembly, clean mating surfaces and a suitable external housing seal are recommended, as the open bearing has no integrated protection against the ingress of dirt.