Differential with floating pinion pin

Machine element or mechanism – Gearing – Plural power paths to and/or from gearing

Patent

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Details

74710, 403292, 403361, F16h 140

Patent

active

041822013

ABSTRACT:
A differential including a driven carrier which rotatably receives a pair of spaced bevel gears secured to axially aligned shafts concentric with the axis of rotation of the carrier. A pair of diametrically opposed slots are formed in the inner surface of the carrier and extend parallel to the carrier axis. A two-piece floating pinion pin having pinions journaled thereon includes generally rectangular feet on opposite ends thereof slidably received in the slots and defining flats that are longer than the pin diameter and which slidably engage the sides of the slots thereby preventing rotation of the pin relative to the carrier while allowing the axis of each pinion to shift longitudinally of the slot to maintain the axis of each pinion centered between the engaged portions of the bevel gears. Full bearing engagement of the flats with the sides of the slots is assured during normal operation by a spring which urges the feet of the pinion pin fully into their associated slots thereby compensating for tolerance build up axially of the pinion pin, and by the longer length of the flats which compensates for tolerance buildups transversely of the pinion pin.

REFERENCES:
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patent: 3872741 (1975-03-01), Berchtold
patent: 3894447 (1975-07-01), Michael
patent: 3974717 (1976-08-01), Breed

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