Title:
ROLLING BEARING UNIT FOR SPINNING TOP TOY
Document Type and Number:
Japanese Patent JP2002320781
Kind Code:
A
Abstract:
To provide a rolling bearing unit for a spinning top toy for making the top toy continue the rotation for a long period of time by smoothly rotating a spinning top body of the top toy and keeping the rotation shaft in the stationary state.
The top toy consists of the top body 1 and the rotation shaft 3. The top toy is structured in such a way that the top body 1 and the rotation shaft 3 can be rotated independently. The rotation shaft 3 is supported by deep- grooved ball bearings 5, and the allowance of fit between the outer diameter 3c of the rotation shaft and the inner diameter 7a of the inner ring of the ball bearing is within ±10% of the outer diameter 3c of the rotation shaft.
Inventors:
TAKEMURA HIROMICHI
OTAKI RYOICHI
YAMASHITA KATSUYOSHI
NISHIWAKI NAOYA
TANAKA TAKESHI
ANDO HITOSHI
MURATA TAMAMI
OTAKI RYOICHI
YAMASHITA KATSUYOSHI
NISHIWAKI NAOYA
TANAKA TAKESHI
ANDO HITOSHI
MURATA TAMAMI
Application Number:
JP2001126761A
Publication Date:
November 05, 2002
Filing Date:
April 24, 2001
Export Citation:
Assignee:
NSK LTD
International Classes:
A63H1/00; F16C33/62; F16C33/66; F16C35/063; (IPC1-7): A63H1/00; F16C33/62; F16C33/66; F16C35/063
Attorney, Agent or Firm:
Kenji Iwaki