Claims
- 1. An idler roller assembly comprising a pintle having a bearing surface, a composite idler roller mounted on said pintle, said composite idler roller comprising an annular tread of wear resistant material having an annular interior opening, a molded-on internal sleeve of bearing material sealed and interfitting with said annular tread in said annular interior opening to form a unitary composite roller, said bearing material having a smooth internal bearing surface directly supporting said roller for rotation on said bearing surface of said pintle.
- 2. An assembly as set forth in claim 1 wherein said pintle is a stud.
- 3. An assembly as set forth in claim 1 including the interfittings between the tread and injected bearing material to facilitate the integration of the parts of the composite idler roller.
- 4. An assembly as set forth in claim 3 wherein said interfittings include interfitting grooves and ridges extending axially of the roller.
- 5. An assembly as set forth in claim 3 wherein said interfittings include flats.
- 6. An assembly as set forth in claim 1 including indentations on said smooth internal bearing surface.
- 7. An assembly as set forth in claim 6 wherein said indentations include axial grooves in the smooth internal bearing surface.
- 8. An assembly as set forth in claim 6 wherein said indentations include one or more grooves in the smooth internal bearing surface extending both axially and circumferentially.
- 9. An assembly as set forth in claim 1 wherein said bearing material provides a hard and abrasion resistant internal bearing surface.
Parent Case Info
This is a division of application Ser. No. 08/303,422, filed Sep. 9, 1994, now U.S. Pat. No. 5,493,777.
US Referenced Citations (24)
Non-Patent Literature Citations (3)
Entry |
"Encyclopedia Of Polymer Science And Engineering, vol. 1 A to Amorphous Polymers", John Wiley & Sons, pp. 1-35. |
Load Runners.RTM. Idler-Rollers, Osborn.RTM. A Unit Of Jason Incorporated, pp. 2-23, Catalog. |
Load Runners Idler Rollers, Osborn, Catalog. |
Divisions (1)
|
Number |
Date |
Country |
Parent |
303422 |
Sep 1994 |
|