JP2010190398A5 - - Google Patents

Claims (6)

An inner ring having a track on the outer peripheral surface, an outer ring having a track on the inner peripheral surface, a plurality of rolling elements interposed between the tracks, and the plurality of rolling elements are rotatably held. A rolling bearing, wherein at least one of the raceway surfaces of the two raceways and the rolling surface of the rolling element is lubricated with a lubricating film of oil or grease,
The rolling bearing according to claim 1, wherein the rolling element is made of stainless steel, and the lubricating coating is thin film lubrication having a thickness of 1 to 10 g / m ² .   The rolling bearing according to claim 1, wherein the material of the cage is a resin material, and the resin material is polyetheretherketone (PEEK) or aromatic polyimide (PI). The rolling bearing according to claim 1 or 2, wherein the lubricating coating is a coating by DFO lubrication that is one of the following three types (1) to (3).
(1) A lubricating coating containing a fluoropolymer having a functional group and perfluoropolyether (PFPE).
(2) A lubricating coating obtained by further adding a fluororesin to the lubricating coating described in (1) above.
(3) A lubricating coating comprising a lubricant containing a lubricating oil mainly composed of alkylated cyclopentane or polyphenyl ether and a fluororesin. The relationship between the bearing inner diameter and the bearing width of the rolling bearing is a thin bearing expressed by the following (Equation 1) when the bearing inner diameter is ID and the bearing width is Δd. A rolling bearing according to any one of the above.
Δd / ID <0.187 (Formula 1)   The rolling bearing according to claim 1, wherein the rolling bearing is a vacuum bearing used in a vacuum environment. A transport robot comprising the rolling bearing according to claim 1.