Angular contact ball bearings have raceways in the inner and outer rings which are displaced with respect to each other in the direction of the bearing axis. This means that they can accommodate radial load as well as axial load. The axial load carrying capacity of angular contact ball bearings enhance with the increase of contact angle. They have high and low shoulders in either a ring or both rings. The low shoulder enables a larger number of balls to be incorporated in the bearing.
Single row angular contact ball bearings
Single row angular contact ball bearings can accommodate axial load acting in one direction only. The bearing is normally adjusted against another one or more bearings to form an arrangement in a set. TCB product includes the precision and standard single angular contact ball bearings. The precision assortments of TCB angular contact ball bearings comprise 70 C / 70 AC and 72 C / 72 AC series. These bearings are fitted with an outer ring centred cage of fabric reinforced phenolic resin.
The standard assortment of TCB angular contact ball bearing comprises 72 B and 73 B series.
Double row angular contact ball bearings
Double row angular contact ball bearings correspond in design to two single row angular contact ball bearings in form of back-to-back arrangement with 30º contact angle but without filling slots. They accommodate axial load in both directions as well as radial load.
TCB standard design is also available with shields or seals.
Four-point contact ball bearings
Four-point contact ball bearings are special radial single row angular contact ball bearings with a raceway that is designed to support axial load acting in both directions. These bearings take up much less axial space than double row bearings, which have 35º contact angle. The inner ring is split which allows a large number of balls to be incorporated in the bearing to give the bearing high load carrying capacity. The bearings are separable, so the outer ring with balls and cage assembled can be mounted separately from the two inner ring halves. |