| 摘要 |
A bearing and a shaft and bearing combination for replacing conventional rolling element bearing, washer and lock ring assemblies. The bearing is constructed so that it can be precisely positioned with respect to the shaft in the housing. Additionally, the bearing provides both radial and thrust support so that the need for separate bearings is eliminated. The assembly is ideally suited for use in small high speed low load cooling fans used in computers, peripherals and other office equipment. The shaft includes a radially inward extending groove, preferably conically tapered. The bearing includes a base member, which can include a beam mounted radial bearing, and a number of longitudinal beams extending axially away from the base member. Each of the longitudinal beams supports a bearing pad in a cantilever fashion. The bearing pads include a shoulder or radially inward projection having a shape which is complementary to the shape of the groove in the shaft such that the pad shoulder can support the groove faces. The longitudinal beams are resilient enough to allow the pads to be assembled over the shaft. When the pads are assembled over the shaft and the pad shoulders are received in the groove, the bearing is precisely positioned with respect to the shaft.
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