Land vehicles – Wheeled – Running gear
Patent
1986-10-15
1989-01-17
Love, John J.
Land vehicles
Wheeled
Running gear
280 93, B62D 718
Patent
active
047983949
ABSTRACT:
A steerable axle assembly having an axle with a generally vertically extending bore therein, a kingpin that is non-rotatably positioned in the bore in the axle in such a manner that the kingpin is longitudinally engaged by the bore so that the kingpin can not drift upwardly in the bore, the kingpin having upper and lower cylindrical portions that receive first and second tapered roller bearings, respectively, the first and second tapered roller bearings being retained, respectively, in apertures in upper and lower yoke arms of a steering knuckle. The first and second tapered roller bearings are adjustably preloaded by an externally threaded bearing adjuster that is threaded into an internally threaded portion of the aperture in the upper yoke arm of the steering knuckle. The aperture in the upper yoke arm is covered by bolting an end of the steering arm to the upper yoke arm over the aperture and the aperture in the lower yoke arm is covered by bolting an end of the tie rod to the lower yoke arm over the aperture. The kingpin is prevented from migrating upwardly within the bore in the axle either by providing the kingpin with a tapered portion that engages a tapered bore, or by providing the kingpin with a shoulder between a lower, larger diameter portion and a higher, smaller diameter portion that engages a shoulder in the bore between an upper bore portion and a lower counterbore portion.
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Pollock Paul R.
Stoneburner Larry P.
Dana Corporation
Ferriter Karin L.
Love John J.
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