Axial Deep Groove Ball B. SKF 51122

The SKF 51122 axial deep-groove ball bearing with a 110 mm bore accommodates high unilateral axial loads at operating temperatures ranging from -30 to +150 °C.

The 51122 axial deep-groove ball bearing supports shafts in the axial direction and transmits pure axial forces in machine designs. Manufactured from standard roller bearing steel (100Cr6), this SKF design combines a shaft ring, a housing ring and a guided ball cage. With a cross-section comprising an 110 mm inner diameter, a 145 mm outer diameter and a 25 mm height, the bearing can be integrated compactly. It complies with tolerance class P0/PN (ABEC 1) and is suitable for operating temperatures ranging from -30 to +150 °C.

What is the 51122 single-direction axial deep-groove ball bearing suitable for?

This component specifically absorbs axial forces from a single direction and provides axial stability for shafts. However, the design is not intended to withstand purely radial loads, which is why designers usually combine the bearing with separate radial bearings. Typical applications include general gearbox construction and spindle bearings, where axial forces act at moderate rotational speeds. As the bearing is supplied without a washer, the housing flange rests directly against a flat housing shoulder.

What is important when fitting the 51122 axial ball bearing?

As the 51122 axial deep-groove ball bearing is not angularly adjustable, the design requires a mounting surface that is exactly perpendicular to the shaft axis. Otherwise, misalignment or skewing will lead to localised edge stresses, which accelerate wear. The integrated sheet steel cage guides the rolling elements and maintains a defined spacing between the balls. During installation, care must be taken to ensure that the mating surfaces are clean and that a suitable lubricant is used, one which is approved for the required temperature range between –30 and +150 °C.