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US 10,196,576 B2Granted
Water lubrication type bearing material
AssigneeEagle Industry Co., Ltd.
InventorTakanobu Matsumoto
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Abstract
A water lubrication type bearing material contains 12 wt. % to 25 wt. % of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin (PFA resin), 18 wt. % to 33 wt. % of a carbon fiber, and a remainder including a polytetrafluoroethylene (PTFE) resin and/or a modified PTFE resin. The bearing material has excellent wear resistance and sliding characteristics for a water lubrication type bearing.
Claims14
A water lubrication type bearing material comprising:
- 12 wt. % to 25 wt. % of a tetrafluoroethylene-perfluoroalkyl vinyl ether copolymer resin (PFA resin);
- 18 wt. % to 33 wt. % of a carbon fiber;
- and
- 42 wt. % to 70 wt. % of a remainder including a polytetrafluoroethylene (PTFE) resin and/or a modified PTFE resin,
- wherein the carbon fiber is a curved/twisted carbon fiber having a curvature radius in a range of 50 to 1500 μm, and
- no solid lubricant is blended in the water lubrication type bearing material.
3 more elements
Dependencies are inferred from the claim text.