| CPC F16C 23/045 (2013.01) [F16C 33/043 (2013.01); F16C 33/125 (2013.01)] | 20 Claims |
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1. A pivot bearing comprising
a metallic first bearing element made of steel, the metallic first bearing element at least partially being coated by means of a coating; and
a metallic second bearing element made of steel, the metallic second bearing element being coated with a PTFE-containing sliding lining;
the coating and the sliding lining being in sliding contact, the coating including at least one first layer deposited on the first bearing element by a PVD, CVD or PECVD method;
wherein at least one of:
the at least one first layer is either an oxidic, nitridic, oxynitridic or carbidic material layer which contains at least one of the elements from the group consisting of titanium, aluminum, chromium, tungsten and molybdenum, or
the at least one first layer is an amorphous carbon layer or a diamond layer, or
the at least one first layer is a metallic layer formed from one or more of the metals of the group comprising chromium, brass, bronze, white metal, copper, zinc or tin;
wherein the coating further comprises at least one further layer arranged on the at least one first layer on a side of the first layer that faces away from the first bearing element,
wherein the at least one further layer includes a second layer adjoining a first layer of the at least one first layer on a side of the first layer facing away from the first bearing element, the second layer differing from the adjoining first layer in its composition and being formed either by means of a PVD, CVD or PECVD method and/or is formed from a lubricating varnish comprising PTFE.
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15. A pivot bearing comprising:
an inner ring made of steel; and
an outer ring made of steel;
one of the inner ring and the outer ring at least partially being coated by a coating, and the other of the inner ring and the outer ring being coated with a sliding lining including PTFE;
the coating and the sliding lining being in sliding contact, the coating including at least one first layer, the at least one first layer being a material layer, an amorphous carbon layer, a diamond layer or a metallic layer,
the material layer being an oxidic, nitridic, oxynitridic or carbidic material layer containing at least one of the elements from the group consisting of titanium, aluminum, chromium, tungsten and molybdenum,
the metallic layer being formed from one or more of the metals of the group comprising chromium, brass, bronze, white metal, copper, zinc or tin; and
the coating further comprising at least one further layer arranged on an exterior of the at least one first layer,
wherein the coating comprises two or three first layers and exactly one further layer.
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20. A method of creating a pivot bearing comprising:
coating a first steel bearing element with at least one first layer by PVD, CVD or PECVD;
coating a second steel bearing element with a sliding lining including PTFE;
providing at least one further layer on the at least one first layer; and
arranging the first steel bearing element and the second steel bearing element such that the sliding lining is in sliding contact with the coating and the at least one further layer is between the at least one first layer and the sliding lining,
the at least one first layer being a material layer, an amorphous carbon layer, a diamond layer or a metallic layer,
the material layer being an oxidic, nitridic, oxynitridic or carbidic material layer containing at least one of the elements from the group consisting of titanium, aluminum, chromium, tungsten and molybdenum,
the metallic layer being formed from one or more of the metals of the group comprising chromium, brass, bronze, white metal, copper, zinc or tin,
wherein the providing of the at least one further layer on the at least one first layer includes applying a lubricating varnish including PTFE.
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