Hyperbolic sealing pressure relief device for preventing lubricating grease loss of motor bearing
The invention relates to a hyperbolic sealing pressure relief device, in particular to a hyperbolic sealing pressure relief device for preventing lubricating grease of a motor bearing from losing. The invention aims to solve the problem of bearing lubricating grease loss caused by pressure differenc...
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Format: | Patent |
Sprache: | chi ; eng |
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