A heat isolating linkage (5) that includes an elongate link having first and second end portions (10, 12) and a middle portion (14) extending therebetween. A bearing opening (16) is formed in the first end portion (10) and a bearing race (18) is disposed in the bearing opening (16). A rod end ball (20) is disposed in the bearing race (18). At least one aperture (30-36) is formed through the middle portion (14). The middle portion (14) may include a plurality of apertures (30-36) each in the form of a rectangle that forms a ladder pattern. Accordingly, the middle portion (14) has a cross sectional area (A2) that is smaller than the cross sectional area of at least one of the first and second end portions (A1, A3).

An insulated bearing includes an outer ring, an inner ring, and a plurality of rolling elements. At least one of the outer ring and an inner ring is made of metal, the plurality of rolling elements are provided between the outer ring and the inner ring, so as to be freely rolled, and at least one of the outer ring and an inner ring is coated with an insulating layer. The insulating layer is formed of a mixture in which silicon carbide and/or aluminum nitride as an additive are/is dispersed in aluminum oxide as a base matrix. The content of the additive is 1 to 40 mass % with respect to the total amount of the mixture.

An insulated bearing includes an outer ring, an inner ring, and a plurality of rolling elements. At least one of the outer ring and an inner ring is made of metal, the plurality of rolling elements are provided between the outer ring and the inner ring, so as to be freely rolled, and at least one of the outer ring and an inner ring is coated with an insulating layer. The insulating layer is formed of a mixture in which silicon carbide and/or aluminum nitride as an additive are/is dispersed in aluminum oxide as a base matrix. The content of the additive is 1 to 40 mass % with respect to the total amount of the mixture.

A tilting pad gas bearing includes: a plurality of bearing pads disposed in a circumferential direction of a rotor; and a pivot member that swingably supports the bearing pads. Each of the bearing pads has a curved shape and includes: a pad main body supported by the pivot member; a heat insulating material layer disposed on a side of the pad main body that faces the outer circumferential surface of the rotor, and formed of a material having a thermal conductivity lower than a thermal conductivity of the pad main body; and a concave portion disposed in an outer circumferential surface on an outer circumferential side of the bearing pad in a curving direction. A base end of the pivot member is fixed to a housing, and the pivot member has a protruding portion that passes through the housing.

A protective cap (1, 30) for covering some areas of a fully assembled ball joint (50). The protective cap (1, 30) can be screwed, by virtue of a multi-turn, all-round internal thread (11), onto a threaded section (53) of a ball stud (51) of the ball joint (50). Furthermore, a ball joint (50) with a ball stud (51) having a protective cap (1, 30) screwed onto a threaded section (53) of the ball stud (51). Also a two-point linkage (80) with at least one ball joint (81, 82) having a ball stud (51) with a protective cap. The linkage is in the form of a steering rod (80), a track rod, a stabilizer tie-rod, an operating link or a Panhard rod.

The present invention resides in a method of manufacturing a bearing ring (101) for a rolling element bearing, wherein the bearing ring comprises a bearing race (102) made of a bearing grade steel and an overmolded part (106) that is preferably made of a lightweight metal such as aluminum or a thermoplastic material such as polyamide. According to the invention, the method comprises a step of hardening at least a raceway surface (103) of the bearing race prior to a step of joining the overmolded part (106) to the bearing race (102) in a molding process. In a further development, the method comprises a step of temperature control, to ensure that the temperature of the raceway surface (103) is kept below a predetermined value during the molding process.

A first seal and a second seal seal an annular space between an outer ring and an inner ring by sandwiching a retainer. A stator including a coil is supported by the first seal and is opposed to a magnetic ring. A sensor, a wireless communication circuit, and a power supply circuit are supported by the second seal. A wire electrically connects the coil and the power supply circuit. The wire includes a part disposed in a groove extending in an axial direction of a bearing on an outer peripheral surface of the outer ring.