Adjustable clearance foil journal bearing and method of...

Details Adjustable clearance foil journal bearing and method of... Adjustable clearance foil journal bearing and method of...

F - Mech Eng,Light,Heat,Weapons

16

C

26/179, 308/1.4

F16C 32/06 (2006.01) F16C 17/12 (2006.01)

Patent

CA 1141808

ADJUSTABLE CLEARANCE FOIL JOURNAL BEARING AND METHOD OF MANUFACTURING FOIL ELEMENT THEREFOR ABSTRACT OF THE DISCLOSURE A fluid-film journal bearing includes a resilient foil insert assembly mounted in the bore of a retaining member and having a bearing surface cooperative with the bearing surface of a rotatable journal. The retaining member has a slit extending tangential to the bore with associated means for retaining the foil and for varying the bearing clearance. The resilient foil insert comprises a continuous length of foil coiled into a plurality of layers with the innermost layer providing said bearing surface and another layer preformed into successive, undulating curves having alternating peaks and valleys. A method for fabricating the foil insert includes the use of a pair of cooperating toothed rolls to deform a portion of the foil insert into the aforesaid undulations.

359056

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