Axial Deep Groove Ball B. SKF 51208

The SKF 51208 single-direction axial deep groove ball bearing accommodates pure axial forces for shaft diameters of 40 mm.

The 51208 axial deep-groove ball bearing is designed as a separable rolling bearing for accommodating single-direction axial loads. With a bore of 40 mm, an outside diameter of 68 mm and a width of 19 mm, this design provides targeted support for shafts in one direction. Manufactured from standard rolling-element bearing steel (100Cr6), the component offers dimensional stability in demanding industrial environments. It is manufactured to tolerance class P0/PN or ABEC 1, which means the bearing can be easily integrated into existing designs.

In which applications is the 51208 axial deep groove ball bearing used?

This rolling bearing is used wherever purely axial loads must be transmitted parallel to the axis of rotation. Due to its design, this type of bearing must not absorb radial forces. Typical applications include bearing arrangements with purely axial loads or vertically mounted shafts. The bearing supports the shaft on one side. As this design is not angularly adjustable, installation requires precisely perpendicular and rigid mating surfaces on both the shaft and the housing.

What should be taken into account when fitting a single-sided bearing?

During installation, the correct alignment of the shaft washer and housing washer is crucial. The shaft washer has a ground bore with a tight fit to the shaft, whilst the housing washer has a larger through-bore to allow for radial clearance. A sheet steel cage guides the rolling elements evenly between the two raceways. The assembly is designed for an operating temperature range of -30 to +150 degrees. Please note that this product scope includes the axial deep-groove ball bearing without a washer, and misalignment must be avoided beforehand.