Sealing system in double roller bearing for separating two oil chambers in road vehicle gearbox has ring with two inner and two outer lips facing in two directions and engaging bearing races

摘要

A shaft (12) in the gearbox (10) carries a gearwheel (26,28) which runs in a double roller bearing (14) in a fixed housing (18). There is an oil seal ring (32,34) between the two rows of rollers (14a,b). A first pair of outward-facing lips (32a,34a) engage on the inner race (40) between the two rows of rollers and a second pair of inward-facing lips (32b,34b) engage on the outer race (36). The first row of rollers is lubricated in a first oil chamber (24) and the second row is lubricated in a second oil chamber (30).