The above chart provides typical Baldor•Reliance motor dimensions. For more exact dimensional data, please check the specific drawing for each catalog number. Dimensional data for 444T through 449TS frame sizes reflect the use of a top mounted conduit box with a cantilevered mounting arm.

The above chart provides typical Baldor•Reliance motor dimensions. For more exact dimensional data, please check the specific drawing for each catalog number. NEMA states only a minimum value for AA dimension. AA dimensions shown in chart are Baldor typical values meeting or exceeding NEMA. Please check motor drawing for actual dimensions.

The following are dimensional size charts for standard electric motor NEMA standard frames and configuration. Standardized motor dimensions are established by the National Electrical Manufacturers Association (NEMA) - are tabulated below and apply to all base-mounted motors listed herein that carry a NEMA frame designation

NEMA QUICK REFERENCE CHART NEMA FRAME DE2F H NOP UVAA AB AH AJ AK BA BB BD XO TAP 42 2-5/8 1-3/4 1-11/16 9/32 1-1/2 54-11/163/8 1-1/8 3/84-1/32 1-5/16 3-3/4 3 2-1/16 1/84-5/8 1-9/16 1/4-20 ... Drawings represent standard TEFC general purpose motors Refer Data Section 502 for various models, OPEN or TEFC *D im e ns oa rf c ly. Leader in Energy ...

IEC and NEMA torque classifications of electrical motors. Electrical Induction Motors - Synchronous Speed Operating speed of an induction motor depends on the input power frequency and the number of magnetic poles in the motor.