Electric motor shaft extension gage

Details Electric motor shaft extension gage Electric motor shaft extension gage

1994-05-20

1996-10-22

Will, Thomas B.

Geometrical instruments

Distance measuring

Article support integral with measuring means

33833, 33572, 33655, G01B 702

Patent

active

055664644

ABSTRACT:
A shaft extension gage is provided at the rotor/rotor shaft insertion station in an electric motor production line. The gage includes a locating plate above which a partially assembled electric motor is positioned, a rotor shaft receiving assembly defining a chamber into which the rotor shaft is inserted, an indicator secured to the rotor shaft receiving assembly which measures shaft extension, and a display which the operator may read to determine if the shaft extension is within limits. The gage allows an operator to measure and correct both the rotor shaft's extension and end play without removing the motor from the assembly line and before the motor's end shields are attached to the motor shell to secure the rotor and rotor shaft in the shell. The gage may also be used to determine if the rotor shaft diameter is too large.

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patent: 3413726 (1968-12-01), Sankovich
patent: 3670243 (1972-06-01), Fougre et al.
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patent: 4590668 (1986-05-01), Peachee, Jr.
patent: 4993167 (1991-02-01), Durfee, Jr.
patent: 5077909 (1992-01-01), Cranor
patent: 5131159 (1992-07-01), Takahashi et al.
patent: 5199181 (1993-04-01), Gordin
patent: 5224275 (1993-07-01), Salzberg

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