Planetary gear having a ceramic tubular sleeve as bearing means

Details Planetary gear having a ceramic tubular sleeve as bearing means Planetary gear having a ceramic tubular sleeve as bearing means

1997-05-14

1998-10-27

Ta, Khoi Q.

Planetary gear transmission systems or components

Planetary gearing or element

475346, 74443, 384913, 3849071, F16H 128, F16C 3206

Patent

active

058271473

ABSTRACT:
A planetary gear assembly for a transmission is disclosed having a carrier with two spaced apart plates. A plurality of cylindrical axles extend between and are secured to the plates so that these axles are spaced apart and generally parallel to each other. A gear having an inner cylindrical surface is coaxially disposed around each axle. Furthermore, a tubular cylindrical ceramic sleeve is positioned between the outer surface of each axle and the inner cylindrical surface of each gear. The cylindrical sleeve serves as a bearing between the shaft and its associated gear.

REFERENCES:
patent: 3418028 (1968-12-01), Watson et al.
patent: 3834248 (1974-09-01), Caliri
patent: 4269262 (1981-05-01), Knapp et al.
patent: 4754494 (1988-06-01), Kumar
patent: 4767677 (1988-08-01), Kuwayama
patent: 4901602 (1990-02-01), Matoba
patent: 5211611 (1993-05-01), Lammers et al.
patent: 5382203 (1995-01-01), Bellman et al.
patent: 5470286 (1995-11-01), Fan
patent: 5695424 (1997-12-01), Mizuta

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