System, method and apparatus for metallic gear hub with metallic teeth having outer polymer layer
AssigneeSteering Solutions IP Holding Corporation
InventorsJeffrey E. Beyerlein, Alan G. Turek, Himadri Shastry, Jason T. Rutkiewicz
Life of this patent
Estimating the term…
Abstract
Embodiments of a system, method and apparatus for a gear are disclosed. For example, a metallic gear hub can include an axis of rotation and metallic gear teeth. The metallic gear teeth can be smaller than a final gear teeth size of the gear. The metallic gear teeth can be co-planar with the axis. In addition, the metallic gear teeth can be non-orthogonal to the axis. A polymer layer can be located on the metallic gear teeth to form polymer gear teeth on the metallic gear teeth. The polymer gear teeth can form the final gear teeth size of the gear.
Claims7
-14. (canceled)
A gear, comprising:
- a metallic gear hub consisting of a monolithic gear core having an axis of rotation and metallic gear teeth that have roll, pitch and yaw axes and are smaller than a final gear teeth size of the gear;
- a timing notch formed in the metallic gear hub;
- and
- a polymer layer bonded on the metallic gear teeth with an adhesion promoter to form polymer gear teeth on the metallic gear teeth, wherein the polymer gear teeth comprise the final gear teeth size of the gear, such that the metallic gear hub is configured to fully support a contact line of a mating gear.
A gear made by a process comprising the steps of:
- forming a polymer outer ring with inner plastic teeth;
- forming a metallic gear hub consisting of a monolithic gear core having an axis of rotation and metallic gear teeth that have roll, pitch and yaw axes and are smaller than a final gear teeth size of the gear;
- forming a timing notch in the metallic gear hub;
- and
- pressing, heating and bonding the polymer outer ring on the metallic gear teeth with an adhesion promoter and, with the polymer outer ring, forming polymer gear teeth on the metallic gear teeth, wherein the polymer gear teeth comprise the final gear teeth size of the gear, such that the metallic gear hub is configured to fully support a contact line of a mating gear.
Dependencies are inferred from the claim text.