公开(公告)号：US20240035516A1

公开(公告)日：2024-02-01

申请号：US18355911

申请日：2023-07-20

Applicant: Seiko Instruments Inc.

Inventor： Akihiro IINO ,  Misato HANAOKA

IPC: F16C33/66

CPC classification number: F16C33/6614 ,  F16C33/6633 ,  F16C33/6629

Abstract: To provide a rolling bearing excellent in long-term durability. A rolling bearing includes: an inner ring and an outer ring disposed coaxially with each other; a rolling element disposed between the inner ring and the outer ring; a seal member mounted on the outer ring and configured to cover a space between the inner ring and the outer ring from an outside in an axial direction; and grease disposed between the rolling element and the seal member. The grease is in contact with an inner circumferential surface of the outer ring and the seal member. Unworked penetration of the grease is more than 178 and less than 287.

公开(公告)号：US20170002867A1

公开(公告)日：2017-01-05

申请号：US15247117

申请日：2016-08-25

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Akihiro IINO ,  Yukihiro NAKAYAMA ,  Misato HANAOKA ,  Hisaya NAKAMURA ,  Hiroki YODA

IPC: F16C33/66 ,  C10M169/04

CPC classification number: F16C33/6633 ,  C10M169/04 ,  C10M2203/024 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2207/0225 ,  C10M2207/026 ,  C10M2207/0406 ,  C10M2207/126 ,  C10M2207/128 ,  C10M2207/2835 ,  C10M2207/289 ,  C10M2215/06 ,  C10M2215/064 ,  C10M2215/1026 ,  C10M2215/221 ,  C10M2215/223 ,  C10N2230/00 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2230/68 ,  C10N2240/02 ,  C10N2240/204 ,  C10N2250/10 ,  F16C19/54 ,  F16C33/416 ,  F16C33/6603 ,  F16C33/6607 ,  F16C33/785 ,  F16C2370/12 ,  C10N2220/022

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 translation: 提供了一种信息记录和再现装置1的滚动轴承的润滑脂，其含有选自由通式（1）表示的胺系抗氧化剂（A）中的基础油，增稠剂和至少一种抗氧化剂， ，和由通式（2）表示的苯酚类抗氧化剂（B）。

公开(公告)号：US20160208856A1

公开(公告)日：2016-07-21

申请号：US15002046

申请日：2016-01-20

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Akihiro IINO ,  Yukihiro NAKAYAMA ,  Misato HANAOKA ,  Hisaya NAKAMURA ,  Hiroki YODA

IPC: F16C33/66 ,  C10M107/02 ,  C10M115/08 ,  C10M129/78 ,  C10M169/00 ,  C10M101/02 ,  C10M133/12

CPC classification number: F16C33/6633 ,  C10M169/04 ,  C10M2203/024 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2207/0225 ,  C10M2207/026 ,  C10M2207/0406 ,  C10M2207/126 ,  C10M2207/128 ,  C10M2207/2835 ,  C10M2207/289 ,  C10M2215/06 ,  C10M2215/064 ,  C10M2215/1026 ,  C10M2215/221 ,  C10M2215/223 ,  C10N2230/00 ,  C10N2230/10 ,  C10N2230/12 ,  C10N2230/68 ,  C10N2240/02 ,  C10N2240/204 ,  C10N2250/10 ,  F16C19/54 ,  F16C33/416 ,  F16C33/6603 ,  F16C33/6607 ,  F16C33/785 ,  F16C2370/12 ,  C10N2220/022

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 translation: 提供了一种信息记录和再现装置1的滚动轴承的润滑脂，其含有选自由通式（1）表示的胺系抗氧化剂（A）中的基础油，增稠剂和至少一种抗氧化剂， ，和由通式（2）表示的苯酚类抗氧化剂（B）。

公开(公告)号：US20250027536A1

公开(公告)日：2025-01-23

申请号：US18774425

申请日：2024-07-16

Applicant: Seiko Instruments Inc.

Inventor： Akihiro IINO ,  Takayuki KOSAKA ,  Haruhiko HASEGAWA ,  Misato HANAOKA

IPC: F16C33/10 ,  F16C19/06 ,  F16C33/58

Abstract: To provide a rolling bearing capable of ensuring durability and reducing rotational resistance. The rolling bearing includes an inner ring and an outer ring disposed coaxially with each other; a rolling body disposed between the inner ring and the outer ring; a sealing member mounted on the outer ring and covering a space between the inner ring and the outer ring from an outer side in an axial direction; and grease disposed between the rolling body and the sealing member. The outer ring has an inner circumferential surface facing the inner ring. The inner circumferential surface is formed with an outer ring raceway surface that supports the rolling body in a rollable manner, and a recessed portion that is provided at a location extending in the axial direction from an end edge of the outer ring raceway surface in the axial direction and is recessed in a radial direction. The grease is in contact with the recessed portion. Unworked penetration of the grease is greater than 178 and less than 287.

公开(公告)号：US20180010642A1

公开(公告)日：2018-01-11

申请号：US15640955

申请日：2017-07-03

Applicant: SEIKO INSTRUMENTS INC.

Inventor： Akihiro IINO ,  Takayuki KOSAKA ,  Misato HANAOKA ,  Hisaya NAKAMURA ,  Koji ISHII

IPC: F16C33/66 ,  C10M115/08 ,  C10M101/02 ,  F16C19/54 ,  F16C33/41 ,  C10M105/04 ,  G11B5/48

CPC classification number: F16C33/6633 ,  C10M101/02 ,  C10M105/04 ,  C10M115/08 ,  C10M169/02 ,  C10M2203/024 ,  C10M2203/1006 ,  C10M2203/1025 ,  C10M2205/0285 ,  C10M2215/1026 ,  C10N2220/022 ,  C10N2230/02 ,  C10N2230/06 ,  C10N2240/02 ,  C10N2250/10 ,  F16C19/546 ,  F16C33/416 ,  F16C33/418 ,  F16C33/6614 ,  F16C33/6688 ,  F16C2210/04 ,  F16C2370/12 ,  G11B5/4813

Abstract: The invention has an object of providing grease reduced in an amount of the flying grease and an amount of the outgas, and superior in low-temperature characteristic, an antifriction bearing using the grease, an antifriction bearing device, and an information recording/reproducing device. A grease includes a base oil, and a thickener, the base oil includes mineral oil and poly-α-olefin, the poly-α-olefin is higher in mass than the mineral oil, the poly-α-olefin includes poly-α-olefin higher in kinetic viscosity than the mineral oil, the kinetic viscosity of the base oil at 40° C. is in a range of 40 through 90 mm2/s, and worked penetration is in a range of 200 through 250. Further, an antifriction bearing, an antifriction bearing device, and an information recording/reproducing device use the grease.