Parallel-axis differential

Details Parallel-axis differential Parallel-axis differential

1995-09-20

1997-04-15

Bonck, Rodney H.

Planetary gear transmission systems or components

Differential planetary gearing

Spur gear differential

475160, 74462, F16H 344

Patent

active

056203896

ABSTRACT:
In a parallel-axis differential, pocket pairs are formed in an inner periphery of a housing and planetary gear pairs are rotatably received in the pocket pairs, respectively. With outer peripheral surfaces of the planetary gears (i.e., top faces of helical teeth) being in contact with inner peripheral surfaces of the pockets, the planetary gears are rotated relative to the housing. End portions of the helical teeth located on opposite end portions of each planetary gear are gradually reduced in height toward ends of the planetary gear. By this, top faces of end portions of those helical teeth are slightly convexly curved. The top faces of the end portions of those helical teeth are served as contact surfaces which are brought into contact with the inner peripheral surfaces of the pockets when the planetary gears are slightly inclined.

REFERENCES:
patent: 4777838 (1988-10-01), Aarestad
patent: 5194054 (1993-03-01), Amborn et al.
patent: 5433673 (1995-07-01), Cilano

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