专利名称：Bearing assembly
发明人：Gary M. Crase,Kurt M. Trzeciak申请号：US06/067923申请日：19790820公开号：US04260202A公开日：19810407
摘要：A bearing assembly, for a drive shaft connected to an in-hole motor rotor todrive a bit and a housing connected to the motor stator has sets of oppositely actingthrust bearings having corresponding members of bearings and parts at opposite sidesof a thrust member on the shaft. Plural sets of thrust bearings are shown betweenspaced radial bearings to optimize load distribution.
申请人：SMITH INTERNATIONAL, INC.
代理人：Philip Subkow,Bernard Kriegel
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