Apparatus for greasing wheel bearings
OwnerGene A. Riceinventor
Life of this patent
Estimating the term…
Abstract
A device for injecting grease into a wheel bearing avoids the need for removing the seal ring of the wheel bearing. The device has a hollow mandrel with a closed bottom. A flange extends outward from the mandrel for contact with an inner cage ring of the hearing. A collar extends radially outward from the mandrel above the flange. The collar has an outer edge for contacting the seal ring. The collar is axially movable relative to the flange. A spring urges the collar and flange apart from each other. A port is located in the mandrel between the collar and the flange. A grease fitting allows grease to be introduced into the mandrel to flow out the port, into the space between the collar and the flange, and into the wheel bearing.
Claims5
An apparatus for greasing a wheel bearing mounted in a counterbore of a wheel hub, the wheel bearing being of a type having a plurality of rollers mounted between inner and outer cage rings and having a seal ring, the apparatus comprising in combination:
- a hollow mandrel having a closed bottom;
- a flange extending outward from the mandrel for contact with the inner cage ring;
- a collar extending radially outward from the mandrel above the flange and having an outer edge adapted to contact the seal ring;
- the collar and flange being carried by the mandrel for axial movement relative to each other, to assure tight contact between the collar and the seal ring and between the flange and the inner cage ring;
- check valve means for introducing grease into the mandrel;
- at least one port in the mandrel between the flange and the collar for allowing grease to flow from the mandrel into the space between the flange and collar and into contact with the rollers;
- and
- spring means for urging the collar and flange apart from each other.
An apparatus for greasing the wheel bearing of a type mounted in a counterbore of a wheel hub, the wheel bearing having a plurality of rollers mounted between inner and outer cage rings and having a seal ring, the apparatus comprising in combination:
- a hollow mandrel having a closed bottom;
- check valve means mounted to the mandrel for introducing grease into the mandrel;
- a flange extending outward from the mandrel at the bottom of the mandrel for contact with the inner cage ring;
- a collar slidingly and sealingly mounted to the exterior of the mandrel above the flange, the collar extending radially outward a greater distance than the flange and having an outer edge for contact with the seal ring;
- at least one port in the mandrel adjacent the bottom of the flange between the flange and the collar for allowing grease to flow from the mandrel into the space between the flange and collar and into contact with the rollers;
- and
- spring means for urging the collar and flange apart from each other.
Dependencies are inferred from the claim text.