Title:
ROLLING BEARING UNIT WITH ROTARY SPEED DETECTION DEVICE
Document Type and Number:
Japanese Patent JP3633048
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To prevent, for example, muddy water from entering an outer ring and a cover made of synthetic resin with a single O ring.
SOLUTION: A third fine gap exists between the inner end face of an outer ring 8 and the outer surface of a cover 18b. A first fine gap exists between the inner-periphery surface of the inner-edge part of the outer ring 8 and the outer-periphery surface of a sleeve 31 made of metal. A second fine gap exists between the sleeve 31 and a synthetic resin for constituting the cover 18b. For example, a muddy water entering from the third fine gap is shielded by an O ring 37, thus preventing the muddy water from entering the outer ring 8 and the cover 18b made of synthetic resin via first and second gaps.
Inventors:
Omi Hayato
Application Number:
JP21347895A
Publication Date:
March 30, 2005
Filing Date:
August 22, 1995
Export Citation:
Assignee:
Nippon Seiko Co., Ltd.
International Classes:
G01P3/488; B60T8/00; B60T8/171; F16C19/00; F16C19/52; F16C33/76; (IPC1-7): G01P3/488; B60T8/00; F16C19/00; F16C19/52; F16C33/76
Domestic Patent References:
| JP4359156A | ||||
| JP58105802A | ||||
| JP4110602U | ||||
| JP62108002U | ||||
| JP5014634U |
Foreign References:
| EP0557931A1 |
Attorney, Agent or Firm:
Kinzo Koyama
Takeo Koyama
Takeo Koyama
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