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NTIS 바로가기국가/구분 | United States(US) Patent 등록 |
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국제특허분류(IPC7판) |
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출원번호 | US-0067923 (1979-08-20) |
발명자 / 주소 |
|
출원인 / 주소 |
|
인용정보 | 피인용 횟수 : 8 인용 특허 : 1 |
A bearing assembly, for a drive shaft connected to an in-hole motor rotor to drive a bit and a housing connected to the motor stator has sets of oppositely acting thrust bearings having corresponding members of bearings and parts at opposite sides of a thrust member on the shaft. Plural sets of thru
A bearing assembly for an in-hole motor having a stator and a rotor, said assembly including: a housing adapted for connection to said stator; a shaft in said housing adapted for connection to said rotor; bearing between said shaft and said housing in thrust transmitting relation therewith; said bea
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