Ball race slewing gear

Details Ball race slewing gear Ball race slewing gear

F - Mech Eng,Light,Heat,Weapons

16

C

F16C 33/60 (2006.01) F16C 33/76 (2006.01)

Patent

CA 2104289

- 8 - ABSTRACT BALL RACE SLEWING GEAR Ball race slewing gear, for example, for open-cast mining equipment, are oil-lubricated ball race lower parts made up of segments and receiving the supporting balls supporting the superstructure, which can be rotated in relation to the lower frame. To improve the sealing of the segments (1) against oil leaking out of the separating lines and to make it superfluous to disassemble the ball race slewing gear for each renewal of the seal, the end faces of the segments (1) are formed with recesses (2) which enclose the ball race (3) in U-shape and whose arms (5) are open in the direction of the inside and outside of the ball race lower part and which receive strand-shaped rubber or plastics sealing sections (6). The sealing sections (6) have segment side sealing lips (9) and a continuous cavity (10) and are each disposed completely in one of the two abutting segments. The sealing ring enclosing the ball race lower part and the internal oil collecting ring are interrupted in the zone of the separating lines and closed by readily removable extension members (7, 8). A leakage monitoring device is connected outside the sealing sections (6) in the zone of the transition between the web (4) and arms (5) of the recess (2). Fig. 4

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