VACUUM PUMP WITH A BEARING CAGE RETAINER

The present invention provides bearing cage retainer for a rolling element rotor bearing in a vacuum pump. The bearing cage retainer being configured to have an operational arrangement in which, at the maximum longitudinal axial displacement limit of the outer race in the direction of the retainer,...

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Bibliographic Details
Main Authors MEARES, Peter, SNELL, Andrew William, HORLER, Richard Glyn
Format Patent
LanguageEnglish
French
German
Published 24.08.2022
Subjects
BEARINGS
BLASTING
ELEMENTS OR CRANKSHAFT MECHANISMS
ENGINEERING ELEMENTS AND UNITS
FLEXIBLE SHAFTS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
LIGHTING
MECHANICAL ENGINEERING
NON-POSITIVE DISPLACEMENT PUMPS
POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS
PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
ROTARY BODIES OTHER THAN GEARING ELEMENTS
SHAFTS
THERMAL INSULATION IN GENERAL
WEAPONS
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Summary:The present invention provides bearing cage retainer for a rolling element rotor bearing in a vacuum pump. The bearing cage retainer being configured to have an operational arrangement in which, at the maximum longitudinal axial displacement limit of the outer race in the direction of the retainer, the bearing cage retainer is disengaged from the bearing cage, and a failure configuration characterised by the dislocation of the bearing cage by a longitudinal axial displacement of the bearing cage relative to the outer race in the direction of the retainer and in which the bearing cage retainer engages said bearing cage and the bearing cage maintains the separation of the rolling elements within the bearing.
Bibliography:Application Number: EP20180785716