Sealing structure for a bearing

Details Sealing structure for a bearing Sealing structure for a bearing

1977-03-30

1978-09-05

Blix, Trygve M.

Cutlery

277135, 308 363, F16C 3374

Patent

active

041115007

ABSTRACT:
A sealing structure for protecting the bearing of a high speed spindle such as a grinding wheel spindle comprises a bearing cover having an opening that receives and closely surrounds the spindle adjacent the bearing. Three annular recesses provided in the opening of the bearing cover open inwardly to the spindle. An annular channel in the bearing cover radially outwardly of the opening is supplied with pressurized lubricating fluid and is connected by angularly spaced passages with the first and third of the annular recesses so as to supply the pressurized lubricating fluid to them, while the second of the recesses located between the other two is provided with exhaust passages so as to carry off the pressurized lubricating fluid together with any chips or other impurities entering between the spindle and the opening in the bearing cover. The annular channel in the bearing cover is also connected with the bearing so as to supply the pressurized lubricating fluid to the bearing.

REFERENCES:
patent: 2448717 (1948-09-01), Jeffcock
patent: 2697645 (1954-12-01), Mitchell

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