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Patent Searching and Data


Title:
REDUCTION GEAR
Document Type and Number:
Japanese Patent JP2005048864
Kind Code:
A
Abstract:

To provide a reduction gear capable of improving heat balance and maintaining sealing function of a floating seal for a long term.

A reduction gear is equipped with an annular seal storing chamber 74 provided between a fixed housing 28 surrounding a hydraulic motor 2 and a rotary casing 32 accommodating a reduction gear mechanism 44, and an annular floating seal 76 arranged in the seal storing chamber 74. In the seal storing chamber 74, a space larger than the radial thickness of the floating seal 76 is secured between the inner peripheral surface of the seal storing chamber 74 and the inner peripheral surface of the floating seal 76.


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Inventors:
IGAWA YUJI
UZAWA NOBUO
KURIHARA TAKESHI
SEKIDO SHINICHI
SHIBUKAWA TAKESHI
NAGATA TOMOHIRO
Application Number:
JP2003281032A
Publication Date:
February 24, 2005
Filing Date:
July 28, 2003
Export Citation:
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Assignee:
HITACHI CONSTRUCTION MACHINERY
International Classes:
F16J15/34; F16H57/028; F16H57/029; F16H57/03; (IPC1-7): F16H57/02; F16J15/34
Attorney, Agent or Firm:
Koji Nagato
Junichi Yamanaka