Page 6 of catalogue Bearing Technology for Rail Vehicles of Schaeffler Technologies GmbH & Co. KG

Drive

Systems

Rolling Bearings for Gearboxes, Traction Motors, Axle Suspension Bearing Supports
radial and axial loads. Since the bearings can only support axial loads in one direction, a second laterally-reversed tapered roller bearing is required for counterstay as well as for supporting internal aligning forces. Four Point Contact Bearings Four point contact Ball bearings are a type of single-row angular contact ball bearing. They support high axial loads in both directions and are usually mounted with cylindrical Roller bearings as well as in a loose radial location. Axial minimum loads are required for low friction, especially for high speeds. The inner ring is split, which means it can accommodate a large number of balls. Tapered roller bearings Tapered roller bearings 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 Cylindrical roller bearings Single-row cylindrical roller bearings offer an advantage over the other conventional bearing designs because of how easy they are to disassemble in the inner and outer rings with a roller and cage assembly. This offers significant benefits with regards Current-insulated Bearings Damage due to excessive voltage can occur in the bearing supports of Electric motors under unfavorable conditions. Magnetic asymmetries, which cannot be completely avoided despite careful manufacturing processes, cause the voltage between the rotor and the stator to drop. The electric circuit is then closed via the bearing. To prevent this from happening, Schaeffler Group Industrial supplies innovative solutions, which include inner or outer rings coated with oxide ceramics for breakdown voltages of up to 1,000 V or hybrid bearings with rolling elements made of current-insulated ceramic. to mounting, dismounting, 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. The modified linear contact between the rollers and the raceways prevent edge stresses.

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