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Stator Frame Sizes
3

Stator Frame Sizes

Stator Frame Sizes

(OP)


I am new to stator frame sizes. What does the number 56, 48 or 34 'Frame Size' signify in electrical terminology.

Thanks for all the answers.

-mech


Quote:

Work Hard and Work Smart

RE: Stator Frame Sizes

The number for the frame is linked to a standarized set of dimensions that make posible interchange of same frame size motors from different manufacturers.

For motors manufactured under NEMA standards and starting with 14 (143T,145T etc) to frame sizes 50 (504, 505, etc). The first two digigts are the center shaft height to the motor feet given in 4ths of an inch.

145T => shaft height=14/4 =3.5"
184T => shaft height=18/4 =4.5"
445T => shaft height=44/4 =11"
etc.

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