Title:
HUB UNIT BEARING WITH SEALING DEVICE
Document Type and Number:
Japanese Patent JP2019206990
Kind Code:
A
Abstract:
To inexpensively provide a sealing device assembled which is assembled into a hub unit bearing with the sealing device while securing sufficient sealing performance.SOLUTION: A sealing device 20 is constituted by combining an outside seal ring 21 facing an external space, and an inside seal ring 22 facing an internal space. The outside seal ring 21 is locked to an inner ring lock groove formed at an external peripheral face of an inner ring at its internal peripheral edge, and slide-contacts with an internal peripheral face of an outer ring at its external peripheral edge. A substantially-triangle cross section annular protrusion 40 is formed at the outside of a radial direction of a side face of the outside seal ring 21 at the external space side over an entire periphery, and a position of an external peripheral edge of the outside seal ring 21 is located at the internal space side with respect to an apex of the annular protrusion 40.SELECTED DRAWING: Figure 2
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Inventors:
KAMIYA YOSHIO
WAKABAYASHI TATSUO
WAKABAYASHI TATSUO
Application Number:
JP2018101933A
Publication Date:
December 05, 2019
Filing Date:
May 29, 2018
Export Citation:
Assignee:
NSK LTD
International Classes:
F16C33/78; F16C19/18; F16J15/3232
Domestic Patent References:
| JPH09196071A | 1997-07-29 | |||
| JP2003004057A | 2003-01-08 |