Axial Deep Groove Ball B. SKF 51209

The SKF 51209 single-direction axial deep-groove ball bearing accommodates purely axial loads whilst maintaining compact dimensions of 45 × 73 × 20 mm.

The 51209 axial deep groove ball bearing supports shafts subjected to axial forces acting in one direction and consists of a shaft ring, a housing ring and the guided ball set. SKF manufactures the components from standard rolling-bearing steel 100Cr6 with a sheet steel cage. As this design supports purely axial loads, it must not be subjected to radial forces. With a bore of 45 mm, an outside diameter of 73 mm and a height of 20 mm, this roller bearing is suitable for compact designs.

What loads does the 51209 axial deep-groove ball bearing accommodate?

This axial bearing accommodates unidirectional axial thrust forces on rigid shafts. Typical applications include assemblies subject to predominantly axial loads and low radial guiding forces. The components are separable, meaning that the shaft and housing washers can be fitted separately. As the bearing must sit flush and does not compensate for angular misalignment, precisely manufactured mating parts are essential.

What should be taken into account when installing and aligning the 51209 thrust bearing?

Before installation, ensure that the mating surfaces are aligned in a plane-parallel manner. As the bearing is not angularly adjustable, misalignment will result in uneven load distribution. The manufactured tolerance class P0 or ABEC 1 meets standard industrial requirements. Furthermore, the temperature range of -30 to +150 degrees must be observed. A sufficient axial load during operation prevents the rolling elements from slipping.