Antifriction bearing arrangement for tensioning, pressuring or deflecting device of traction mechanism drive, has antifriction bearing for rotary support of drive traction pulley

摘要

The antifriction bearing arrangement has an antifriction bearing (2) for rotary support of a drive traction pulley (1) that is brought with a traction mechanism in active contact. A ventilation device is provided with blades (4). The blades of the ventilation device have a curved shape in a plane that stands perpendicular to a rotational axis (r).