UNIT OF ROTATION Russian patent published in 2010 - IPC B65G39/09 

FIELD: machine building.

SUBSTANCE: unit of rotation consists of case (1) mounted on axle (4) in bearing units (2) forming cavity (5) between internal surface of the case and external surface of the axle and of casing (8) deformed under effect of pressure difference, located in the said cavity and communicated with atmosphere. The casing is communicated with atmosphere by means of a chamber made in the axle. The unit can be equipped with protecting perforated jacket (9) wherein there is installed the said casing.

EFFECT: eliminating cause of dust penetration into structure of unit, decreasing wear of parts and increasing service life of unit.

3 cl, 2 dwg