GREASE FOR ROLLING BEARING OF INFORMATION RECORDING AND REPRODUCING APPARATUS, ROLLING BEARING, ROLLING BEARING DEVICE AND INFORMATION RECORDING AND REPRODUCING APPARATUS

摘要

PROBLEM TO BE SOLVED: To provide grease for a rolling bearing of an information recording and reproducing apparatus, which is more excellent in durability.SOLUTION: In one embodiment, the grease for a rolling bearing of an information recording and reproducing apparatus 1 is provided that contains a base oil and a thickener, wherein the film thickness of an elasto-hydrodynamic lubrication film is 20 nm or greater. In another embodiment, the grease for the rolling bearing of the information recording and reproducing apparatus 1 is provided that contains a base oil and a thickener, wherein the width of the thickener in the grease is 20 nm or greater. Rolling bearings are provided that comprise these grease for a bearing. A rolling bearing device 6 is provided that comprises a shaft and the rolling bearing. The information recording and reproducing apparatus 1 is provided that comprises the rolling bearing device 6.SELECTED DRAWING: Figure 1