SKF 7210 BE-2RZP Schrägkugellager (50x90x20)

As an angular contact ball bearing, this bearing carries combined radial and one-directional axial loads and is often used in pairs. This SKF bearing measures 50x90x20 mm and weighs 0.46 kg; the specification table carries the supplementary technical details. In an angular contact ball bearing the contact line between ball and raceway is inclined to the radial plane — hence its ability to transmit radial and axial load together.

The contact points on inner and outer ring do not face one another radially but are offset, so the line of force action runs through the bearing at an angle. This geometry allows radial and axial load to be transmitted at the same time, and it makes the position stiffer than a design whose line of action is radial. How much stiffer is settled only on assembly: what governs is the axial play resulting from fits, setting and thermal behaviour — from preload without play for high stiffness and close running accuracy to a defined residual play for heat-insensitive running.

The type tolerates misalignment within narrow limits only, because angular error walks the contact ellipse towards the raceway edge; seats must be aligned and accurate in form accordingly. The non-contact seal works with a narrow gap rather than bearing against a face: it protects better than a shield and costs less frictional torque than a contact seal.

Rings and rolling elements are made of through-hardened standard bearing steel. The normal radial clearance recorded corresponds to the standard class and suits ordinary fits and temperature conditions.