B61F—RAIL VEHICLE SUSPENSIONS, e.g. UNDERFRAMES, BOGIES OR ARRANGEMENTS OF WHEEL AXLES; RAIL VEHICLES FOR USE ON TRACKS OF DIFFERENT WIDTH; PREVENTING DERAILING OF RAIL VEHICLES; WHEEL GUARDS, OBSTRUCTION REMOVERS OR THE LIKE FOR RAIL VEHICLES
B61F15/00—Axle-boxes
B61F15/20—Details
B61F15/22—Sealing means preventing entrance of dust or leakage of oil
Landscapes
Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Sealing Devices
(AREA)
Operating, Guiding And Securing Of Roll- Type Closing Members
(AREA)
Cleaning Implements For Floors, Carpets, Furniture, Walls, And The Like
(AREA)