Title:
HUB CLUTCH DEVICE
Document Type and Number:
Japanese Patent JP2020050283
Kind Code:
A
Abstract:
To suppress secular change of switched negative pressures of a hub clutch device.SOLUTION: In a hub clutch device 10 in which an engagement state and a release state are switched by switching negative pressures of a release negative pressure chamber 23 and an engagement negative pressure chamber 24 partitioned by a diaphragm 25, a surface roughness Rz of a contact surface between a reinforcement plate 26 and a diaphragm cover 27 contacting/separated with the switching is 1.5 μm or less.SELECTED DRAWING: Figure 1
Inventors:
YAMADA MASAYOSHI
Application Number:
JP2018183852A
Publication Date:
April 02, 2020
Filing Date:
September 28, 2018
Export Citation:
Assignee:
NTN TOYO BEARING CO LTD
International Classes:
B60K23/08; F16D11/04; F16D25/04
Attorney, Agent or Firm:
Naoya Kamata
Bunji Kamada
Yaichiro Nakatani
Takashi Shimizu
Masanori Akatsuka
Bunji Kamada
Yaichiro Nakatani
Takashi Shimizu
Masanori Akatsuka