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US 11,261,914 B2Granted
Sliding member and bearing
AssigneeSenju Metal Industry Co., Ltd.
InventorsKimihiko Kurosaki, Kenzo Tadokoro, Minoru Toyoda
Life of this patent
Estimating the term…
Abstract
A sliding member includes a metallic substrate, a porous layer formed on a surface of the metallic substrate, and a sliding layer that covers the porous layer. The porous layer is made of a metal itself or an alloy composition. The sliding layer is made of a lead-free resin composition. The resin composition consists of a pitch-based carbon fiber and a fluororesin, and assuming weight of the resin composition as 100, more than 10 weight % and 35 weight % or less of the pitch-based carbon fiber is contained.
Claims17
A sliding member comprising:
- a metallic substrate;
- a porous layer formed on a surface of the metallic substrate;
- and
- a sliding layer that covers the porous layer,
- wherein the porous layer is made of a metal itself or an alloy composition,
- wherein the sliding layer is made of a lead-free resin composition,
- wherein the resin composition consists of a pitch-based carbon fiber and a fluororesin, and assuming weight of the resin composition as 100, more than 10 weight % and 35 weight % or less of the pitch-based carbon fiber is contained and the remainder of the resin composition is only the fluororesin.
4 more elements
A sliding member comprising:
- a lead-free resin composition,
- wherein the lead-free resin composition consists of a pitch-based carbon fiber, a fluororesin, and any of or a combination of two or more of an aramid fiber, an iron oxide, molybdenum disulfide, a graphite, and zinc, zinc alloy or zinc compound,
- wherein assuming weight of the resin composition as 100, a content of the pitch-based carbon fiber is more than 10 weight % and 35 weight % or less,
- a content of the aramid fiber is more than 0 weight % and 14 weight % or less when the aramid fiber is added;
- a content of the iron oxide is more than 0 weight % and 37 weight % or less when the iron oxide is added;
- a content of the molybdenum disulfide is more than 0 weight % and 20 weight % or less when the molybdenum disulfide is added;
- a content of the graphite is more than 0 weight % and 10 weight % or less when the graphite is added;
- a content of the zinc, zinc alloy or zinc compound is more than 0 weight % and 40 weight % or less when the zinc, zinc alloy or zinc compound is added, and the remainder is the fluororesin.
5 more elements
A bearing comprising:
- a metallic substrate;
- a porous layer formed on a surface of the metallic substrate;
- and
- a sliding layer that covers the porous layer, the sliding layer being a cylindrical internal circumference and annular innermost layer,
- wherein the porous layer is made of a metal itself or an alloy composition,
- wherein the sliding layer is made of a lead-free resin composition,
- wherein the resin composition consists of a pitch-based carbon fiber and a fluororesin, and assuming weight of the resin composition as 100, more than 10 weight % and 35 weight % or less of the pitch-based carbon fiber is contained and the remainder of the resin composition is only the fluororesin.
4 more elements
A bearing comprising:
- a metallic substrate;
- a porous layer formed on a surface of the metallic substrate;
- and
- a sliding layer that covers the porous layer, the sliding layer being a cylindrical internal circumference and annular innermost layer,
- wherein the porous layer is made of a metal itself or an alloy composition,
- wherein the sliding layer is made of a lead-free resin composition,
- wherein the lead-free resin composition consists of a pitch-based carbon fiber, a fluororesin, and any of or a combination of two or more of an aramid fiber, an iron oxide, molybdenum disulfide, a graphite, and zinc, zinc alloy or zinc compound,
- wherein assuming weight of the resin composition as 100, a content of the pitch-based carbon fiber is more than 10 weight % and 35 weight % or less,
- a content of the aramid fiber is more than 0 weight % and 14 weight % or less when the aramid fiber is added;
- a content of the iron oxide is more than 0 weight % and 37 weight % or less when the iron oxide is added;
- a content of the molybdenum disulfide is more than 0 weight % and 20 weight % or less when the molybdenum disulfide is added;
- a content of the graphite is more than 0 weight % and 10 weight % or less when the graphite is added;
- a content of the zinc, zinc alloy or zinc compound is more than 0 weight % and 40 weight % or less when the zinc, zinc alloy or zinc compound is added, and the remainder is the fluororesin.
10 more elements
A sliding member comprising:
- a lead-free resin composition,
- wherein assuming weight of the resin composition as 100, the resin composition contains more than 10 weight % and 35 weight % or less of a pitch-based carbon fiber,
- wherein the resin composition further contains a combination of two or more of an aramid fiber, an iron oxide, molybdenum disulfide, a graphite, and zinc, zinc alloy or zinc compound,
- more than 0 weight % and 14 weight % or less of the aramid fiber is contained when the aramid fiber is added;
- more than 0 weight % and 37 weight % or less of the iron oxide is contained when the iron oxide is added;
- more than 0 weight % and 20 weight % or less of the molybdenum disulfide is contained when the molybdenum disulfide is added;
- more than 0 weight % and 10 weight % or less of the graphite is contained when the graphite is added;
- more than 0 weight % and 40 weight % or less of the zinc, zinc alloy or zinc compound is contained when the zinc, zinc alloy or zinc compound is added, and the remainder is a fluororesin.
5 more elements
A bearing comprising:
- a metallic substrate;
- a porous layer formed on a surface of the metallic substrate;
- and
- a sliding layer that covers the porous layer, the sliding layer being a cylindrical internal circumference and annular innermost layer,
- wherein the porous layer is made of a metal itself or an alloy composition,
- wherein the sliding layer is made of a lead-free resin composition,
- wherein assuming weight of the resin composition as 100, the resin composition contains more than 10 weight % and 35 weight % or less of a pitch-based carbon fiber,
- wherein the resin composition further contains a combination of two or more of an aramid fiber, an iron oxide, molybdenum disulfide, a graphite, and zinc, zinc alloy or zinc compound,
- more than 0 weight % and 14 weight % or less of the aramid fiber is contained when the aramid fiber is added;
- more than 0 weight % and 37 weight % or less of the iron oxide is contained when the iron oxide is added;
- more than 0 weight % and 20 weight % or less of the molybdenum disulfide is contained when the molybdenum disulfide is added;
- more than 0 weight % and 10 weight % or less of the graphite is contained when the graphite is added;
- more than 0 weight % and 40 weight % or less of the zinc, zinc alloy or zinc compound is contained when the zinc, zinc alloy or zinc compound is added, and the remainder is a fluororesin.
10 more elements
Dependencies are inferred from the claim text.