Bearings – Rotary bearing – Plain bearing
Patent
1994-12-14
1996-03-12
Footland, Lenard A.
Bearings
Rotary bearing
Plain bearing
384399, 384477, 2989811, F16C 1712
Patent
active
054980844
ABSTRACT:
Means and method for restricting the flow of oil which passes between the front bearing and the main shaft of an automatic transmission for motorized vehicles. A gland is formed at the downstream end of the front bearing in either the inner surface of that bearing or of the housing into which the bearing is press-fitted. A split ring made of thermoplastic material having a pressure velocity value in excess of 20,000 at 100 feet/minute surface speed is inserted in the gland and keyed in place against rotation. The ring has a diameter which is slightly less than the diameter of the main shaft which it surrounds, and has circumferential gaps between its overlapping end portions which extend circumferentially 0.006"-0.300" and has axial dimensions of 0.006"-0.150". The circumference of the ring is spaced radially from the opposed wall of the gland at least 0.0005".
REFERENCES:
patent: 4112574 (1978-09-01), Deli
patent: 4268044 (1981-05-01), Killian
patent: 4949821 (1990-08-01), Murota et al.
patent: 5419641 (1995-05-01), Fujinami et al.
Drawing of automatic transmission (no date).
Footland Lenard A.
Quadion Corporation
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