Rolling bearing for hard disk drive

Details Rolling bearing for hard disk drive Rolling bearing for hard disk drive

2005-04-19

2005-04-19

Footland, Lenard A. (Department: 3682)

Bearings

Rotary bearing

Antifriction bearing

Reexamination Certificate

active

06880978

ABSTRACT:
A rolling bearing for an HDD being excellent in the resistance to fretting wear, capable of lowering the torque and relieving the torque change and having a long life while exerting no undesirable effect on various bearing properties. A rolling bearing for hard disk drives wherein a cage7supports a plural number of rolling elements5located between an inner ring2and an outer ring4and sealing members6,6fixed to the both ends in the axial direction of one of said inner ring2and said outer ring4are opposite to each other, wherein a lubricating oil has been injected into the bearing space formed between said sealing members6,6at the both ends in the axial direction so as to amount to 1 to 50% by volume of the bearing space.

REFERENCES:
patent: 5558448 (1996-09-01), Yabe et al.
patent: 5575570 (1996-11-01), Uchiyama et al.
patent: 6010247 (2000-01-01), Mouri et al.

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