Invention Application
- Patent Title: Conductive grease and rolling apparatus packed with the same
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Application No.: US10374067Application Date: 2003-02-27
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Publication No.: US20030158047A1Publication Date: 2003-08-21
- Inventor: Katsuaki Denpo , Atsushi Yokouchi , Koichi Hachiya , Michiharu Naka , Tooru Shouda , Hideki Koizumi
- Applicant: NSK LTD.
- Applicant Address: null
- Assignee: NSK LTD.
- Current Assignee: NSK LTD.
- Current Assignee Address: null
- Priority: JPP.2000-187069 20000622; JPP.2000-362271 20001129; JPP.2000-384186 20001218; JPP.2001-062974 20010307; JPP.2001-105269 20010403
- Main IPC: C10M169/06
- IPC: C10M169/06

Abstract:
This invention is to provide a conductive grease which is less to decrease conductivity as a time passes. The conductive grease comprises abase oil, a thickener, a conductive solid powder, and at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent, wherein an amount of the conductive solid powder added is 0.1 to 10 wt %, and an amount of the at least one kind of a wear inhibitor, an extreme pressure agent and an oiliness agent added is 0.1 to 10 wt %. Further, the conductive grease comprises the base oil and at least one of conductive additives, and the conductive additives are fibrous carbon, metallic particle, metallic compound particle and carbon nano-tube. The conductive grease to be packed into the rolling bearing comprises conductive fine particles such as carbon black and has an oil separation degree of 2% or lower. A ball bearing to be favorably used at high temperature comprises an inner race and an outer race, and a plurality of balls freely rotating between both races, and the conductive grease packed into a space defined between both races and holding the plural balls therein, and the conductive grease comprises the base oil, a thickener comprising fluorine compound or silicone compound and 0.2 to 10 wt % of the carbon black.
Public/Granted literature
- US06689721B2 Conductive grease and rolling apparatus packed with the same Public/Granted day:2004-02-10
Information query
IPC分类: