公开(公告)号：US10914345B2

公开(公告)日：2021-02-09

申请号：US16354703

申请日：2019-03-15

Applicant: NSK LTD.

Inventor： Norihito Akanuma ,  Hiroshi Araki

IPC: F16C43/04 ,  F16C19/06 ,  B05C5/02 ,  F16C33/66 ,  B05D1/00 ,  B05D1/26 ,  F16N37/00 ,  B23P21/00 ,  B05C1/02 ,  B23P15/00 ,  F16N11/00

Abstract: A retainer is rotationally driven about a axis of a ball bearing, and convex areas having pockets provided therein along a ball pitch circle of the retainer and concave areas between adjacent pockets is detected by a sensor. Grease is discharged according to phases of the convex areas and concave areas in the rotationally driven retainer from a dispenser having grease discharge ports arranged to face an annular space.

公开(公告)号：US10584752B2

公开(公告)日：2020-03-10

申请号：US15510406

申请日：2015-09-11

Applicant: NSK LTD.

Inventor： Norihito Akanuma ,  Hiroshi Araki

IPC: B23P21/00 ,  F16C43/04 ,  F16C43/06 ,  F16C19/08 ,  F16C19/06 ,  F16C19/16 ,  B23P15/00 ,  B23P19/04 ,  B25J9/16

Abstract: A plurality of balls inserted in the gap space between an outer ring raceway surface and an inner ring raceway surface are arranged at equally spaced intervals in a circumferential direction. The procedure of this ball arranging method for a ball bearing includes a ball holding step of holding any ball in the gap space by a ball holding mechanism provided at a tip of a robot arm and a ball moving step of moving the ball held by the ball holding mechanism along a pitch circle, and these steps are repeatedly performed for the plurality of balls based on a control program. Accordingly, the plurality of balls are arranged at equally spaced intervals on the pitch circle.

公开(公告)号：US10302139B2

公开(公告)日：2019-05-28

申请号：US15510420

申请日：2015-09-11

Applicant: NSK LTD.

Inventor： Norihito Akanuma ,  Hiroshi Araki

IPC: F16C43/04 ,  B23P21/00 ,  F16C19/06 ,  B05C1/02 ,  B05C5/02 ,  F16C33/66 ,  B05D1/00 ,  B05D1/26 ,  F16N37/00 ,  B23P15/00 ,  F16N11/00

Abstract: A retainer is rotationally driven about a axis of a ball bearing, and convex areas having pockets provided therein along a ball pitch circle of the retainer and concave areas between adjacent pockets is detected by a sensor. Grease is discharged according to phases of the convex areas and concave areas in the rotationally driven retainer from a dispenser having grease discharge ports arranged to face an annular space.