fag transmission bearing–fag transmission bearing are designed to offer a high degree of passenger comfort, generate little noise and be economical. This is made possible, amongst other things, by the rolling bearings developed by Schaeffler Group (FAG bearings)Industrial that can be found in railway transmissions.

fag transmission bearing consists of Various ball and roller bearing types  mentioned below, further types such as deep groove ball bearings, spherical roller bearings, and angular contact ball bearings are used.

Cylindrical roller bearings
Cylindrical roller bearing with a one-piece solid brass cage
Single-row cylindrical roller bearings offer an advantage over other conventional bearing designs because of how easy they are to dismantle in the inner and outer rings with a roller and cage assembly. This means that the user is offered practical benefits with regards to assembly, dismantling, maintenance and inspection. Cylindrical roller bearings are particularly suitable for transmitting high radial forces. NJ and NUP cylindrical roller bearings can also partly be used for transmitting axial forces. FAG cylindrical roller bearings have a modified linear contact between the rollers and the raceway to prevent edge stresses.

Tapered roller bearings

Tapered roller bearings are can be taken apart, since the inner ring with the roller and cage assembly and the outer ring can be assembled separately. The modified linear contact between the rollers and the raceways prevent edge stresses. Tapered roller bearings can support high radial and axial loads. Since the bearings can only support axial loads in one direction, as well as for supporting internal aligning forces, a second laterally-reversed tapered roller bearing is required for counterstay.

Four-point contact ball bearings

Four-point contact ball bearings are a type of single-row angular contact ball bearing, since they support high axial loads in both directions. Four-point contact ball bearings are usually assembled with cylindrical roller bearings in a loose radial location. Axial minimum loads are required for low friction, especially for high speeds.
The inner ring of a four-point contact ball bearing is split, which means it can accommodate a large number of balls.

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