Invention Grant
- Patent Title: Oil-lubricated bearing device and vacuum pump
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Application No.: US15277008Application Date: 2016-09-27
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Publication No.: US09958005B2Publication Date: 2018-05-01
- Inventor: Masashi Manabe , Hidefumi Saito
- Applicant: Shimadzu Corporation
- Applicant Address: JP Kyoto
- Assignee: SHIMADZU CORPORATION
- Current Assignee: SHIMADZU CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Renner, Otto, Boissell & Sklar, LLP
- Priority: JP2015-202379 20151013; JP2016-147412 20160727
- Main IPC: F16C33/66
- IPC: F16C33/66 ; F16C33/38 ; F16C19/16 ; F16N7/14 ; F16N7/38 ; F16C32/04 ; F16C33/41

Abstract:
An oil-lubricated bearing device comprises: a rolling bearing including an inner ring, an outer ring, rolling bodies, and a holder; a tapered member; a lubricant storage disposed on a side provided with the tapered member with respect to the inner ring; and a contact portion. The holder includes pockets each formed with outer and inner ring side openings and configured to hold a corresponding one of the rolling bodies, a lubricant scraping portion formed at an inner peripheral surface of each of the pockets and configured to scrape lubricant adhering to a surface of each of the rolling body, and a second inclined surface formed at an outer peripheral surface portion of the holder adjacent to the outer ring side opening and rising with a slope toward the lubricant storage.
Public/Granted literature
- US20170102034A1 OIL-LUBRICATED BEARING DEVICE AND VACUUM PUMP Public/Granted day:2017-04-13
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