Composite bearing structure

Details Composite bearing structure Composite bearing structure

1992-08-05

1994-01-18

Skudy, R.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 905, 384107, H02K 708, H02K 709, F16C 3206

Patent

active

052802086

ABSTRACT:
A composite bearing structure can withstand high speed rotation has first, second and third bearing components. The first bearing component supports a radial impact force applied to a rotator during rotation, and is made of an inner ring (1) and an outer ring (2) of silicon nitride ceramic sintered bodies. The second bearing component supports an axial load applied to the rotator while maintaining a required clearance between itself and the rotator and is made of two permanent magnets (12, 13) positioned thrustdirectionally opposite to each other. The third bearing component maintains a radial rotational accuracy of the rotator, and is made of a radial dynamic pressure producing groove (5) provided on a cylindrical surface of the inner ring (1).

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