CONTROLLABLE COMBINED BEARING SUPPORT Russian patent published in 2008 - IPC F16C21/00 

FIELD: mechanics.

SUBSTANCE: invention relates to machine building, particularly, to production of the rotor-bearing assemblies made up of a combination of plain and rolling bearings increasing the reliability of rotor machines. The controllable bearing support incorporates a rolling bearing and a taper-thrust-surface plain bearing fitted on the shaft. The shaft bore houses an elastic ring with an inner chamber whereto working fluid is forced through the shaft central and radial holes to deform the said ring radially, that is, to change its OD to ensure a friction contact with the plain bearing taper movable bush. Note here that the said ring is reinforced along its OD by metal plates and fastened in the shaft bore by means of clips.

EFFECT: higher reliability and longer life, simpler design and manufacture.

3 dwg