Fairfield Manufacturing Company, Inc.

Other

Yichen Li

Scott Andrew Martin

Matthew Paul Richards

Randolph Dozier

Shuo Zhang

Shou Zhang

Scott Martin

A planetary wheel drive uses: main bushings affixed to a rotatable housing between a stationary spindle permitting the rotatable output housing to rotate with respect to the stationary spindle, and, planet bushings affixed to rotatable planet gear between a planet pin permitting the planet gear to rotate with respect to the planet pin. The main bushings have two sides, a first side which is press fit into the rotatable output housing and a second side which includes a sliding layer which mates with a surface of the stationary housing.

Planetary wheel drive using bushings

A planetary wheel drive uses a single wall output planet carrier includes an internal spline fixed against rotation through an interconnection with an external spline of the stationary spindle. A locking lug of the single wall output planet carrier extends into a notch of a bearing nut. The locking lug prevents the bearing nut from unthreading itself from the stationary spindle. An output planet thrust plate is bolted to an output planet pin.

Planetary wheel drive single wall lugged output carrier

A planetary wheel drive uses a thrust washer residing between a cover and a thrust plate to absorb axial loads. The thrust washer is has a slip fit to the cover. The surface area of the thrust washer engaging the cover is larger than the surface area of the thrust washer engaging the thrust washer.

Planetary wheel drive using thrust washer&#x2014;cover arrangement

A planetary wheel drive uses a brake having a stamped spring plate which includes a plurality of spring stabilizer connections. Each one of the plurality of springs is mechanically bonded to a respective one of the plurality of spring stabilizer connections. A brake piston includes a bore therethrough and resides in sliding engagement with the stationary spindle. The brake piston is generally cylindrically shaped with an inner portion and an outer portion. The plurality of coil springs reside between said spring stabilizers and said inner shoulder of said brake piston. Pressurized hydraulic fluid releases the brake.

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West Lafayette, IN, United States of America

Yichen Li