Bearing bracket for a dynamoelectric machine

Details Bearing bracket for a dynamoelectric machine Bearing bracket for a dynamoelectric machine

1989-09-07

1991-11-26

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 42, 310258, 310 89, H02K 516, H02K 708, H02K 1514

Patent

active

050685562

ABSTRACT:
A frameless motor includes a laminated annular stator core having an internal bore and a winding projecting from the ends. The bore is enlarged in the end laminations with an annular diameter precisely defining the bearing axis. Cup-shaped bearing supports have precisely formed ends complementing the enlarged bore with an axially spaced bearing wall. the rotor is supported in the bearing supports to support and align the rotor with an air gap to create a complete and framelss dynamoelectric machine which can subsequently be assembled to any suitable support or housing. A cup-shaped cylindrical housing with the outer end machined to a stepped recess has an internal diameter substantially corresponding to the inner bore of the stator core and an outer nominal diameter complementing the internal enlarged bore. Alternatively, the cup-shaped bearing support is formed with a cylindrical housing having an end flange which is precisely machined to the bearing opening and the enlarged bore.

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