Bearings – Rotary bearing – Antifriction bearing
Patent
1999-05-14
2000-12-19
Hannon, Thomas R.
Bearings
Rotary bearing
Antifriction bearing
384489, 384564, 384584, F16C 4304
Patent
active
061619647
ABSTRACT:
There is provided a shaft and sleeve assembly structure for an automatic transmission which can be assembled by inserting a shaft into a needle roller bearing so that a seal ring fitted to the shaft is allowed to pass through inside of the needle roller bearing without causing a seal ring to be damaged. In this assembly structure, in the process of inserting the shaft 11 into the needle roller bearing 25, the seal ring 22 fitted to the shaft 11, upon contact with a radially inner end portion 36A of a flange portion 36 of an outer ring 33 of the needle roller bearing 25, is allowed to pass through the radial inside of the flange portion 36 smoothly along a curved surface 37 bent axially inward. Further, the seal ring 22 fitted to the shaft 11, upon contact with axial one end of a cage 32 of the needle roller bearing 25, is allowed to pass through the radial inside of a flange portion 38 provided at axial one end of the cage 32 smoothly along a curved surface 41 of the flange portion 38.
REFERENCES:
patent: 3813136 (1974-05-01), Pitner
patent: 4350397 (1982-09-01), Cornish et al.
patent: 5529402 (1996-06-01), Murphy
Hannon Thomas R.
Koyo Seiko Co. Ltd.
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