Differential gear

Planetary gear transmission systems or components – Differential planetary gearing – Bevel gear differential

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F16H 4808

Patent

active

060566647

ABSTRACT:
A differential gear which can always obtain a stable differential limiting force even in low-speed rotation. A plurality of rollers are provided between a raceway surface integrally rotating with an input-side rotating body and a raceway surface integrally rotating with an output-side rotating body. A tilt angle of the axes of rolling of the rollers with respect to the axis of rotation of the raceway surfaces is made smaller than 20.degree., and a tilt angle of the axes of rolling of the rollers with respect to a plane including the axis of rotation of the raceway surfaces is made larger than 25.degree. and smaller than 90.degree.. Thereby, a stable frictional force can be produced between the rollers and the raceway surfaces, and a differential limiting force without producing a stick-slip even in low-speed rotation can be obtained.

REFERENCES:
patent: 2548258 (1951-04-01), Griffith
patent: 5234388 (1993-08-01), Nordkvist
patent: 5897453 (1999-04-01), Mimura

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