Motor vehicles – Including one or more ski-like or runner members – With at least one surface-engaging propulsion element
Patent
1995-05-26
1996-01-09
Hill, Mitchell J.
Motor vehicles
Including one or more ski-like or runner members
With at least one surface-engaging propulsion element
74498, 91375A, 180149, B62D 312, B62D 522
Patent
active
054821320
ABSTRACT:
A pinion head for a rack and pinion power steering gear including a pinion gear having hob-formed gear teeth, a spindle at one end of the pinion gear for a ball bearing, an annular skirt at the other end of the pinion gear having an outer cylindrical surface, and an annular runout groove between the pinion gear and the outer cylindrical surface affording exit clearance for a gear hob. The ball bearing on the spindle is closely adjacent the first end of the pinion gear. A plastic sleeve is in sire injection molded onto the pinion head in the runout groove after the pinion gear teeth are hob-formed and includes an outer cylindrical wall defining an extension of the outer cylindrical surface of the skin terminating close to the second end of the pinion gear. The plastic sleeve defines a sleeve bearing on the pinion head on one side of the pinion gear which cooperates with the ball bearing on the other side of the pinion gear in rotatably supporting the pinion head on a housing of the steering gear.
REFERENCES:
patent: 4454801 (1984-06-01), Spann
patent: 5058696 (1991-10-01), Prebay et al.
patent: 5070957 (1991-12-01), Harkrader et al.
patent: 5272933 (1993-12-01), Collier et al.
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