公开(公告)号：US20020019319A1

公开(公告)日：2002-02-14

申请号：US09884947

申请日：2001-06-21

Applicant: NSK LTD.

Inventor： Katsuaki Denpo ,  Atsushi Yokouchi ,  Koichi Hachiya ,  Michiharu Naka ,  Tooru Shouda ,  Hideki Koizumi

IPC: C10M169/06

CPC classification number: B82Y30/00 ,  C10M105/32 ,  C10M107/02 ,  C10M107/50 ,  C10M113/02 ,  C10M117/02 ,  C10M119/22 ,  C10M125/02 ,  C10M129/34 ,  C10M137/04 ,  C10M137/06 ,  C10M169/00 ,  C10M2201/00 ,  C10M2201/041 ,  C10M2201/0416 ,  C10M2201/042 ,  C10M2201/0426 ,  C10M2201/05 ,  C10M2201/061 ,  C10M2201/062 ,  C10M2201/063 ,  C10M2201/065 ,  C10M2201/08 ,  C10M2201/081 ,  C10M2201/082 ,  C10M2201/083 ,  C10M2201/084 ,  C10M2201/103 ,  C10M2201/105 ,  C10M2201/16 ,  C10M2201/18 ,  C10M2205/0206 ,  C10M2207/1225 ,  C10M2207/123 ,  C10M2207/125 ,  C10M2207/1265 ,  C10M2207/129 ,  C10M2207/166 ,  C10M2207/186 ,  C10M2207/206 ,  C10M2207/22 ,  C10M2207/246 ,  C10M2207/2805 ,  C10M2207/282 ,  C10M2207/34 ,  C10M2207/345 ,  C10M2211/022 ,  C10M2211/06 ,  C10M2213/00 ,  C10M2213/02 ,  C10M2213/04 ,  C10M2213/06 ,  C10M2213/062 ,  C10M2215/102 ,  C10M2215/22 ,  C10M2215/221 ,  C10M2215/225 ,  C10M2215/226 ,  C10M2215/30 ,  C10M2219/044 ,  C10M2219/068 ,  C10M2223/02 ,  C10M2223/04 ,  C10M2223/041 ,  C10M2223/042 ,  C10M2223/045 ,  C10M2223/049 ,  C10M2229/02 ,  C10M2229/025 ,  C10M2229/0405 ,  C10M2229/0415 ,  C10M2229/0425 ,  C10M2229/0435 ,  C10M2229/0445 ,  C10M2229/0455 ,  C10M2229/0465 ,  C10M2229/0475 ,  C10M2229/0485 ,  C10M2229/05 ,  C10M2229/0505 ,  C10M2229/051 ,  C10M2229/0515 ,  C10M2229/0525 ,  C10M2229/0535 ,  C10M2229/0545 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/06 ,  C10N2210/08 ,  F16C33/6633 ,  F16C2202/20 ,  Y10S977/742 ,  Y10S977/777 ,  Y10S977/842

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.

Abstract translation: 本发明是提供一种导电性润滑脂，其随着时间的推移而降低导电性。 所述导电性润滑脂包含沥青油，增稠剂，导电固体粉末，以及至少一种耐磨剂，极压剂和油性剂，其中所述导电性固体粉末的添加量为0.1〜10重量％ 并且所述至少一种所述的耐磨抑制剂，极压剂和油性剂的添加量为0.1〜10重量％。 此外，导电性润滑脂包含基油和导电性添加剂中的至少一种，导电性添加剂为纤维状碳，金属粒子，金属化合物粒子，碳纳米管。 填充到滚动轴承中的导电性润滑脂包含导电性微粒例如炭黑，油分离度为2％以下。 在高温下有利地使用的滚珠轴承包括内座圈和外座圈，以及在两个座圈之间自由旋转的多个滚珠，以及填充到两个座圈之间并保持多个球的空间中的导电油脂，以及 导电性润滑脂包括基础油，包含氟化合物或硅氧烷化合物的增稠剂和0.2至10重量％的炭黑。

公开(公告)号：US20030158047A1

公开(公告)日：2003-08-21

申请号：US10374067

申请日：2003-02-27

Applicant: NSK LTD.

Inventor： Katsuaki Denpo ,  Atsushi Yokouchi ,  Koichi Hachiya ,  Michiharu Naka ,  Tooru Shouda ,  Hideki Koizumi

IPC: C10M169/06

CPC classification number: B82Y30/00 ,  C10M105/32 ,  C10M107/02 ,  C10M107/50 ,  C10M113/02 ,  C10M117/02 ,  C10M119/22 ,  C10M125/02 ,  C10M129/34 ,  C10M137/04 ,  C10M137/06 ,  C10M169/00 ,  C10M2201/00 ,  C10M2201/041 ,  C10M2201/0416 ,  C10M2201/042 ,  C10M2201/0426 ,  C10M2201/05 ,  C10M2201/061 ,  C10M2201/062 ,  C10M2201/063 ,  C10M2201/065 ,  C10M2201/08 ,  C10M2201/081 ,  C10M2201/082 ,  C10M2201/083 ,  C10M2201/084 ,  C10M2201/103 ,  C10M2201/105 ,  C10M2201/16 ,  C10M2201/18 ,  C10M2205/0206 ,  C10M2207/1225 ,  C10M2207/123 ,  C10M2207/125 ,  C10M2207/1265 ,  C10M2207/129 ,  C10M2207/166 ,  C10M2207/186 ,  C10M2207/206 ,  C10M2207/22 ,  C10M2207/246 ,  C10M2207/2805 ,  C10M2207/282 ,  C10M2207/34 ,  C10M2207/345 ,  C10M2211/022 ,  C10M2211/06 ,  C10M2213/00 ,  C10M2213/02 ,  C10M2213/04 ,  C10M2213/06 ,  C10M2213/062 ,  C10M2215/102 ,  C10M2215/22 ,  C10M2215/221 ,  C10M2215/225 ,  C10M2215/226 ,  C10M2215/30 ,  C10M2219/044 ,  C10M2219/068 ,  C10M2223/02 ,  C10M2223/04 ,  C10M2223/041 ,  C10M2223/042 ,  C10M2223/045 ,  C10M2223/049 ,  C10M2229/02 ,  C10M2229/025 ,  C10M2229/0405 ,  C10M2229/0415 ,  C10M2229/0425 ,  C10M2229/0435 ,  C10M2229/0445 ,  C10M2229/0455 ,  C10M2229/0465 ,  C10M2229/0475 ,  C10M2229/0485 ,  C10M2229/05 ,  C10M2229/0505 ,  C10M2229/051 ,  C10M2229/0515 ,  C10M2229/0525 ,  C10M2229/0535 ,  C10M2229/0545 ,  C10N2210/01 ,  C10N2210/02 ,  C10N2210/06 ,  C10N2210/08 ,  F16C33/6633 ,  F16C2202/20 ,  Y10S977/742 ,  Y10S977/777 ,  Y10S977/842

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.