Spherical Roller Bearings SKF 22217 EK

The SKF 22217 EK spherical roller bearing, measuring 85x150x36 mm, compensates for misalignment and accommodates heavy radial loads as well as combined axial forces.

The 22217 EK self-aligning roller bearing is an open roller bearing made from case-hardened standard bearing steel (100Cr6) in the SKF Explorer performance class. This version features an 85 mm tapered inner bore, an outer diameter of 150 mm and a width of 36 mm. The design is suitable for applications where high radial forces act on the rotating shaft and misalignments need to be reliably compensated for during operation.

What loads and misalignments does the 22217 EK self-aligning roller bearing compensate for?

The double-row bearing is designed for high radial loads and simultaneously acting axial forces in both directions. Thanks to the common hollow-spherical raceway of the outer ring, the roller pack automatically adjusts itself in the event of shaft deflection or misalignment in the housing. This angular mobility reduces excessive edge stresses at the roller edges and promotes an even load distribution across the entire length of the rollers.

What are the special features of the tapered bore in terms of installation and lubrication?

The tapered bore with a taper ratio of 1:12 allows for secure mounting on tapered shaft seats or, with the aid of suitable adapter sleeves, on cylindrical shafts. The standard radial clearance can be precisely adjusted during assembly by controlling the axial sliding distance of the inner ring. As this is an open bearing without integrated seals, the bearing housing requires an external seal. To ensure a uniform supply of grease or lubricating oil, the outer ring is fitted with a circumferential lubrication groove and lubrication holes. The integrated sheet steel cage guides the rolling elements reliably at operating temperatures ranging from –30 to +200 degrees Celsius.