Abstract: According to one embodiment, an inspection system includes an estimation device and a detection device. The estimation device is configured to estimate an inspection range having a possibility that a predetermined object is present. The detection device is configured to generate detection information as to whether or not the predetermined object is present in the inspection range.

Abstract: An object is to provide a grease composition for a ball joint capable of reducing the starting torque, reducing the operating torque, and improving the low temperature property as compared with the related art. The grease composition for a ball joint according to the present invention contains a silicone oil as a base oil and an additive, and contains an amino-modified silicone and a modified polyolefin as the additive. The silicone oil preferably includes at least one of dimethyl silicone oil and phenyl-modified silicone oil.

Abstract: A grease for a rolling bearing of an information recording and reproducing apparatus contains a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant expressed by the General Formula (1), and a phenol-based antioxidant expressed by the General Formula (2). The base oil contains a refined mineral oil classified as Group III in a base oil category defined by the American Petroleum Institute, and the flash point of the refined mineral oil is 240° C. or higher.

Abstract: Grease comprises a base oil and a thickener. The base oil contains mineral oil and poly-?-olefin, the proportion of the mineral oil is 10% by mass to 40% by mass in 100% by mass of the base oil, and a kinematic viscosity v1 of the mineral oil at 40° C. is higher than a kinematic viscosity v2 of the poly-?-olefin at 40° C. The base oil comprises a refined mineral oil that is classified as Group III in a base oil category defined by the American Petroleum Institute, and the flash point of the refined mineral oil is 240° C. or higher. A rolling bearing contains the grease, a rolling bearing device includes a shaft supported by the rolling bearing device, and an information recording and reproducing apparatus includes the rolling bearing device.

Abstract: A grease composition includes a base oil, a thickener and at least one kind of an antioxidant selected from an amine-based antioxidant and a phenol-based antioxidant expressed by the following respective general formulas (1) and 2: The base oil contains a poly-?-olefin and a mineral oil. A mass ratio of poly-?-olefin/mineral oil is 1.25 to 9.

Abstract: Provided is grease for a rolling bearing of an information recording and reproducing apparatus 1, containing a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant (A) expressed by the General Formula (1), and a phenol-based antioxidant (B) expressed by the General Formula (2).

Abstract: Grease for a rolling bearing of an information recording and reproducing apparatus 1 contains a base oil and a thickener, wherein the film thickness of an elasto-hydrodynamic lubrication film is 20 nm or greater. Grease for a rolling bearing of an information recording and reproducing apparatus 1 contains a base oil, and a thickener, wherein a width of the thickener in the grease is 20 nm or greater. A rolling bearing includes the grease for a rolling bearing. A rolling bearing device 6 includes a shaft and the rolling bearing. An information recording and reproducing apparatus 1 includes the rolling bearing device 6.

Abstract: Provided is grease for a rolling bearing of an information recording and reproducing apparatus 1, containing a base oil, a thickener, and at least one kind of an antioxidant selected from an amine-based antioxidant (A) expressed by the General Formula (1), and a phenol-based antioxidant (B) expressed by the General Formula (2).

Abstract: Provided are grease containing a base oil and a thickener, a rolling bearing including the grease, a rolling device 6, and an information recording and reproducing apparatus 1. The base oil contains mineral oil and poly-?-olefin, a proportion of the mineral oil is 10% by mass to 40% by mass in 100% by mass of the base oil, and a kinematic viscosity ?1 of the mineral oil at 40° C. is higher than a kinematic viscosity ?2 of the poly-?-olefin at 40° C.