Sleeve bearing assembly and method of construction
View Patent ↗A sleeve bearing assembly and method of construction therefore has an inner portion constructed from a plurality of yarns to provide a journal bearing surface for receipt of a journal for relative movement therein and an elastic outer portion injection molded at least partially about the inner portion. The plurality of yarns are woven together with at least some of the yarns being woven in a warp direction corresponding to a length of the journal bearing surface and in a weft direction corresponding to a circumferential direction of the journal bearing surface to form a backing of the inner portion. At least one of the plurality of yarns is provided as a self-lubricating yarn woven with the backing in a weft direction to substantially form the bearing surface radially inwardly of the backing.
1. A sleeve bearing assembly, comprising:
an inner portion constructed from a plurality of yarns to provide a generally cylindrical journal bearing surface for receipt of a journal for relative movement therein;
an elastic outer portion injection molded at least partially about said inner portion; and
said plurality of yarns being woven together with at least some of said yarns being woven in a warp direction corresponding to a length of said journal bearing surface and in a weft direction corresponding to a circumferential direction of said journal bearing surface to form a backing and at least one of said plurality of yarns being provided as a self-lubricating yarn woven with said backing in a weft direction to substantially form said bearing surface.
2. The sleeve bearing assembly of claim 1 wherein said self-lubricating yarn is woven in a weft-faced sateen pattern.
3. The sleeve bearing assembly of claim 1 wherein said self-lubricating yarn floats under at least four of said yarns of said backing woven in the warp direction and passes over one of said yarns of said backing woven in the warp direction between floats adjacent to one another in the circumferential direction, said one of said yarns of said backing being provided as a self-lubricating yarn.
4. The sleeve bearing assembly of claim 1 wherein said backing is woven in a weft-faced twill pattern.
5. The sleeve bearing assembly of claim 4 wherein said backing is woven with polyester yarn.
6. The sleeve bearing assembly of claim 4 wherein selected ones of said warp yarns of said backing are provided as self-lubricating yarn.
7. The sleeve bearing assembly of claim 1 wherein said backing is woven in a plain weave pattern.
8. The sleeve bearing assembly of claim 7 wherein said backing is woven with polyester yarn.
9. The sleeve bearing assembly of claim 7 wherein selected ones of said warp yarns of said backing are provided as self-lubricating yarn.
10. The sleeve bearing assembly of claim 1 wherein said self-lubricating yarn is PTFE.