Steering knuckle assembly with lubrication system
US5975547A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 9, 1997 |
| Grant date | Nov 2, 1999 |
| Priority date | — |
| Expiry date | Sep 9, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16C2326/24
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A steering knuckle assembly receives a distal end of a steer axle beam which is generally symmetrical about a center line and has a pin bore therethrough. This knuckle assembly includes a steering knuckle which pivotally cooperates with the axle beam distal end. The steering knuckle includes a pair of yokes where each has a yoke bore longitudinally therethrough coaxially aligned with each other and with the pin bore. Each yoke also includes a yoke outer surface, and a yoke face surface which cooperates with a corresponding axle beam distal end and has an aperture formed therein. The knuckle assembly also includes a kingpin which has opposed ends and is received by the pin and yoke bores. Also included is a pair of yoke seals, each received by the yoke face aperture which includes an annular housing and an annular rubber portion. The rubber portion has at least one lip which operatively contacts the kingpin to provide a seal therewith. Further included is a pair of flexible bladder seals, whereby with each adjacent kingpin end defines a grease receptacle to retain grease and to provide lubrication between the kingpin and the steering knuckle during articulation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.