Entity

Time filter

Source Type

Fujisawa, Japan

Patent
Nsk Ltd. | Date: 2015-02-24

A single-split cage capable of continuously holding a plurality of rolling elements stably for a long time by eliminating the difference in the strength between split regions, by maintaining the strength of the entire cage uniform in the circumferential direction and by maintaining the dimensional accuracy between the split regions constant at the time of molding and also capable of improving load capacity and achieving low cost for assembly. A split section


Patent
Nsk Ltd. | Date: 2015-02-24

A single-split cage capable of continuously holding a plurality of rolling elements stably for a long time by eliminating the difference in the strength between split regions, by maintaining the strength of the entire cage uniform in the circumferential direction and by maintaining the dimensional accuracy between the split regions constant at the time of molding and also capable of improving load capacity and achieving low cost for assembly. A split section


Patent
Nsk Ltd. | Date: 2014-04-21

In an upper end portion of a front end portion of an outer column, a cutout which is opened to a front end edge of the outer column is provided in a state of being overlapped on a front end portion of an outer shaft in a radial direction. Accordingly, during insertion work, a state of core dislocation can be visually confirmed through the cutout.


Patent
Nsk Ltd. | Date: 2014-06-12

An electric power steering apparatus includes an input shaft, an output shaft, a torsion bar coaxially coupling the input and output shafts to each other, and a torque detection sleeve. One of the input and output shafts includes a cylindrical portion. On the inner peripheral surface of the cylindrical portion, a female stopper is provided. The other of the input and output shafts includes a male stopper to be engaged with the female stopper, and a torque detection concave-convex section adjacent to the male stopper in the axial direction. The male stopper includes a plurality of male grooves. The torque detection concave-convex section includes a plurality of detection grooves. The torque detection sleeve is arranged radially outside the torque detection concave-convex section. The diameter of a groove bottom circle of the male stopper is smaller than the diameter of a groove bottom circle of the torque detection concave-convex section.


Patent
Nsk Ltd. | Date: 2015-12-22

A rolling bearing in which at least one of the bearing rings is obtained by applying a induction heat treatment to a spheroidizing annealed steel material having a DI value of 1.0 or more to form a hardened layer having a hardness of 550 HV or more on at least a raceway surface and a fitting surface. In the induction heat-treated bearing ring, (A) an average retained austenite amount is 12 vol % or less, (B) the raceway surface has a retained austenite amount of 12 vol % or more and a residual compressive stress of 100 MPa or less, and (C) a difference between a hardness of the raceway surface and a minimum hardness of a region having a hardness of less than 550 HV is 150 HV or more.

Discover hidden collaborations