Self-Aligning Ball B. SKF 1217 K

The SKF 1217 K self-aligning ball bearing (85x150x28 mm) compensates for misalignment and features a tapered bore for mounting sleeves.

The 1217 K self-aligning ball bearing is a double-row rolling bearing with a hollow-spherical outer ring raceway, manufactured by SKF from standard rolling bearing steel (100Cr6). With a bore diameter of 85 mm, an outer diameter of 150 mm and a width of 28 mm, this component primarily accommodates radial loads. Thanks to its geometry, the bearing automatically compensates for misalignment between the shaft and housing and is suitable for industrial bearing arrangements.

In which installation situations does the 1217 K self-aligning ball bearing compensate for misalignment?

The 1217 K self-aligning ball bearing is primarily used where shaft deflection or misalignment between the bearing seats occurs. As the outer ring forms a common spherical raceway for both rows of balls, the inner ring and ball set adjust themselves with angular movement during operation. The design covers a temperature range from -30 to +150 degrees.

How is the 1217 K self-aligning ball bearing with a tapered bore fitted?

The version with the suffix ‘K’ has a tapered bore with a taper ratio of 1:12. This design allows for direct mounting on tapered shaft seats or for mounting on cylindrical shafts using a shrink sleeve. When slid onto the tapered seat, the standard radial bearing clearance is reduced, allowing the remaining operating clearance to be adjusted during installation. The integrated sheet steel cage guides the rolling elements, whilst the open design allows for application-specific lubrication.