Axial Deep Groove Ball B. SKF 51211

The SKF 51211 axial deep-groove ball bearing is designed for shafts with a 55 mm bore and accommodates unidirectional axial loads with an outer diameter of 90 mm.

The SKF 51211 axial deep groove ball bearing is designed for applications in which purely axial forces are supported in one direction. With an inner diameter of 55 mm, an outer diameter of 90 mm and a height of 25 mm, this rolling bearing is suitable for industrial shaft mountings. The components are made of standard rolling-element bearing steel (100Cr6) and are designed for operating temperatures ranging from -30 to +150 degrees. A guided sheet steel cage holds the rolling elements in position. The separable individual parts allow the shaft and housing washers to be fitted separately.

What is the 51211 axial deep groove ball bearing suitable for in operation?

The single-direction axial deep groove ball bearing 51211 absorbs purely axial forces in one direction and supports shafts against the surrounding housing. The bearing must not carry radial loads. In general mechanical engineering, this design is typically used for vertically aligned shafts where defined axial forces occur. With a tolerance class of P0/PN or ABEC 1, the component fits into standardised interference fits.

Why is angular adjustability an important consideration for the 51211 axial deep groove ball bearing?

The 51211 axial deep groove ball bearing is not designed to be angularly adjustable. The contact surfaces on the shaft and housing must be exactly perpendicular to the bearing axis, as misalignment can lead to edge loading. This item is supplied as a pure axial deep-groove ball bearing without a shim and does not automatically compensate for installation errors. Ensure that the mating parts are dimensionally stable and that the contact surfaces are clean and flat. For lubrication within the temperature range of -30 to +150 degrees, select a lubricant suitable for the operating temperature and the axial forces involved.