Title:
BEARING UNIT FOR VACUUM PUMP AND VACUUM PUMP
Document Type and Number:
Japanese Patent JP2004360639
Kind Code:
A
Abstract:
To provide a bearing unit constituted by making a connecting rod into a resin member and integrally fitting the connecting rod and a bearing incorporated into the connecting rod through a fitting structure.
This bearing unit consists of the connecting rod 10 for converting an eccentric turning movement of an eccentric shaft 9 into a linear movement and the antifriction bearing 12 incorporated into the connecting rod. The connecting rod is formed out of a resin material, and the inside diameter of a shaft connection portion 11 of the connecting rod and the outside diameter of an outer ring 16 of the antifriction bearing 12 are integrally formed through the fitting structure 17, thus realizing prevention of creeping.
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Inventors:
YAMADA MANABU
Application Number:
JP2003162286A
Publication Date:
December 24, 2004
Filing Date:
June 06, 2003
Export Citation:
Assignee:
NSK LTD
International Classes:
F04B39/00; F04B43/02; F16C7/02; F16C9/04; F16C19/06; F16C33/58; F16C35/067; (IPC1-7): F04B39/00; F04B43/02; F16C7/02; F16C9/04; F16C19/06; F16C33/58; F16C35/067
Attorney, Agent or Firm:
Kenji Iwaki