Bearings – Rotary bearing – Antifriction bearing
Patent
1987-01-14
1987-11-17
Footland, Lenard A.
Bearings
Rotary bearing
Antifriction bearing
384477, 384487, F16C 3378
Patent
active
047071508
ABSTRACT:
An annular elastomeric seal wedge of diamond shaped radial cross section under axial compression has opposite axial ends fitted within V-shaped cross section annular grooves within a radially projected shoulder of a bushing of a fluid pressure assisted rotary shaft seal and a similar V-shaped annular groove within the axial end face of the rotating seal race. A radial groove is formed within the side of the annular elastomeric seal wedge remote from the outside of the rotary shaft seal which receives an annular metal wave spring having axial undulations for axially biasing the rotating seal race in contact with the end face of a static seal race to form the dynamic shaft seal and for maintaining the positive pressure seal between the ends of the axial ends of the diamond shaped annular elastomeric seal wedge across the gap between the bushing radially projecting shoulder and the facing end of the rotating seal race.
REFERENCES:
patent: 3218110 (1965-11-01), Conner
patent: 4351533 (1982-09-01), Moore
patent: 4482194 (1984-11-01), Chambers
patent: 4527915 (1985-07-01), Ikariishi et al.
Disposable Waste Systems, Inc.
Footland Lenard A.
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