Spherical Roller Bearings SKF 22215 EK

The SKF 22215 EK self-aligning roller bearing, with a 75 mm tapered bore and an outer diameter of 130 mm, offers high load-carrying capacity in the event of misalignment.

The SKF 22215 EK self-aligning roller bearing is a double-row roller bearing in the Explorer series, designed for demanding industrial applications. With a bore of 75 mm, an outside diameter of 130 mm and a width of 31 mm, the roller bearing accommodates high radial loads as well as combined axial forces. Thanks to the spherical outer ring raceway, the bearing automatically compensates for misalignment and shaft deflection during operation. Manufactured from 100Cr6 bearing steel, it is suitable for a temperature range of -30 to +200 degrees.

What is the 22215 EK self-aligning roller bearing suitable for?

Design engineers and maintenance technicians use this design primarily for heavy radial loads and where shaft deflection occurs. Typical applications include heavily loaded industrial drives and bearing arrangements with misalignment. Thanks to the combination of dimensional accuracy PN and restricted running accuracy P5, the bearing operates with low vibration even under high loads. As this is an open bearing without an integrated seal, the surrounding housing must be effectively sealed against dirt and moisture.

What is the function of the tapered bore during installation?

The suffix ‘K’ denotes a tapered bore with a taper ratio of 1:12. This design facilitates mounting on tapered shaft seats or, using standardised mounting and withdrawal sleeves, on smooth shafts. Users can adjust the standard radial bearing clearance to suit operating conditions by sliding the bearing onto the shaft to the specified axial position. A sheet steel cage guides the rolling elements during operation. For continuous relubrication, the outer ring features a circumferential lubrication groove and lubrication holes, through which the lubricant reaches directly between the two rows of rollers.