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Title:
PULLEY UNIT
Document Type and Number:
Japanese Patent JP2017166534
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a pulley unit capable of positively preventing immersion of water or foreign matters.SOLUTION: There are provided a pulley 1; a pulley hub 2 assembled into an inside part of the pulley 1; bearings 8, 9 and one-way clutch 10 assembled between the pulley 1 and the pulley hub 2; and a disc-like cap 20 fitted to an inner diameter part of the pulley 1. The cap 20 has a disc part 21 covering one end in an axial direction of the pulley hub 2; a cylindrical side periphery part 22 fitted to an inner diameter part of the pulley 1; and a tapered shoulder part 23 formed between the disc part 21 and the side periphery part 22. The shoulder part 23 has an elastic seal part 27 fixed to an entire periphery of a surface adjacent to the inner diameter part of the pulley 1. When the cap 20 is fitted into one end in an axial direction of the inner diameter part of the pulley 1, the elastic seal part 27 is closely contacted to an entire periphery at the inner diameter part of the pulley 1.SELECTED DRAWING: Figure 1

Inventors:
ISHIKAWA SHINTARO
YAMADA MASAYOSHI
Application Number:
JP2016050572A
Publication Date:
September 21, 2017
Filing Date:
March 15, 2016
Export Citation:
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Assignee:
NTN TOYO BEARING CO LTD
International Classes:
F16H55/36; F16J13/14
Attorney, Agent or Firm:
Naoya Kamata
Bunji Kamada
Yaichiro Nakatani