发明名称 |
SINGLE-ROW ROLLING BEARING FOR ROTARY DRILL |
摘要 |
FIELD: machine building. ^ SUBSTANCE: single-row rolling bearing for rotary drill contains movable and immovable rings and located between then rolling elements, implemented from dissimilar materials. On immovable ring annular paths are implemented for each rolling element in cut. In the center of each cut it is simplemented opening for lubrication. On race groove of movable ring and to annular paths of immovable ring it is applied diamondlike coating. Rolling elements are manufactured from ceramics on the basis of silicium nitride. ^ EFFECT: increasing of durability. ^ 5 dwg |
申请公布号 |
RU2378478(C2) |
申请公布日期 |
2010.01.10 |
申请号 |
RU20060131112 |
申请日期 |
2006.08.29 |
申请人 |
SMOLJANINOV VLADISLAV VLADIMIROVICH |
发明人 |
SMOLJANINOV VLADISLAV VLADIMIROVICH;ENIN GENNADIJ ALEKSEEVICH;ROMASHIN SERGEJ FEDOROVICH |
分类号 |
E21B4/02;F16C19/00 |
主分类号 |
E21B4/02 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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