Truck step-down gear drive shaft bearing with cooling system has hub, a roller bearing and a lubricating oil supply

摘要

A shaft (1) bearing forms part of a truck reduction gear and has a hub (2), a roller (6) bearing (3) with inner (4) and outer (5) races, and a lubricating oil supply (16). The shaft (1) and/or hub (2) incorporates a passage supplying cooling oil to the roller bearing (3).