公开(公告)号：WO1996035059A1

公开(公告)日：1996-11-07

申请号：PCT/US1996006084

申请日：1996-05-01

Applicant: ROCKWELL INTERNATIONAL CORPORATION

Inventor： ROCKWELL INTERNATIONAL CORPORATION ,  LENTINI, Anthony, G. ,  GEHRKE, Glenn ,  HOLT, Craig ,  KURZEJA, Patrick

IPC: F16C19/46

CPC classification number: F16D3/385 ,  F16C17/04 ,  F16C17/18 ,  F16C19/466 ,  F16C21/005 ,  F16C33/1065 ,  F16C2361/41

Abstract: A universal joint bearing assembly (20) incorporates an inventive thrust washer (30) molded from plastic. The plastic thrust washer (30) eliminates the metal galling and metal debris that have been found in prior art universal joint bearings. A support notch (38) is formed at radially outer surfaces to support an inner end (40) of needle bearings (28). Resilient members (34) bias the notch (38) against the needle bearings (28) such that the needle bearings (28) are supported on the notch (38) and against a seal (26) at the outer end (42) of the bearing cup (22). The resilient members (34) are compressed when the universal joint is assembled such that the needle bearings (28) operate properly. A central dome extension (36) on the thrust washer (30) insures that the thrust washer (30) is not improperly mounted within the bearing cup (22). An outer face of the thrust washer (30) is formed at an angle (A) such that central portion (50) extend further towards the trunnion (24) than radially outer portions. In a method of assembling a bearing according to the present invention, the thrust washer (30) is initially placed within a bearing cup (22) and the needle bearings (28) are then mounted within the bearing cup (22) as is the seal (26). The thrust washer (30) biases the needle bearings (28) such that they are supported between the thrust washer (30) and a seal (26). The bearing may then be shipped. When the universal joint is finally assembled, the trunnion (24) compresses the resilient members (34). At that time, the needle bearings (28) are free to move axially and the universal joint will operate properly.

Abstract translation: 万向接头轴承组件（20）包括由塑料模制的本发明的止推垫圈（30）。 塑料止推垫圈（30）消除了现有技术的万向节轴承中发现的金属磨损和金属碎屑。 支撑凹口（38）形成在径向外表面以支撑滚针轴承（28）的内端（40）。 弹性构件（34）将凹口（38）偏压在滚针轴承（28）上，使得滚针轴承（28）支撑在凹口（38）上并且抵靠在凹槽（38）的外端（42）处的密封件 轴承杯（22）。 当万向节组装成使得滚针轴承（28）正常工作时，弹性构件（34）被压缩。 止推垫圈（30）上的中心圆顶延伸部（36）确保止推垫圈（30）未正确地安装在轴承杯（22）内。 止推垫圈（30）的外表面形成为角度（A），使得中心部分（50）比径向外部部分进一步朝向耳轴（24）延伸。 在根据本发明的组装轴承的方法中，止推垫圈（30）最初被放置在轴承杯（22）内，然后将滚针轴承（28）安装在轴承杯（22）内，如密封件 （26）。 止推垫圈（30）偏压针轴承（28），使得它们被支撑在止推垫圈（30）和密封件（26）之间。 然后可以运输轴承。 当万向接头最终组装时，耳轴（24）压缩弹性部件（34）。 此时，滚针轴承（28）可以自由地轴向移动，万向节将正常工作。