56 Frame Motor Shaft Size

These exceptions are noted in the general catalog.

56 frame motor shaft size.

Suffix z special shaft dim. Leader in energy efficient industrial electric motors and drives nemakeyseat nemakeyseat shaft dimensionsshaft dimensions u r s u r s 3 8 21 64 flat 1 7 8 1 19 32 1 2 1 2 29 64 flat 2 1 8 1 27 32 1 2. And apply to all base mounted motors listed herein that carry a nema frame 1designation. Dimension v is shaft length available for coupling pinion or pulley hub this is a minimum value.

For the d dimension of a three digit frame number consider only the first two digits and use the divisor 4. For example in the two digit 56 frame the d dimension is 3 56 divided by 16 3. Nema motor dimensions reference chart. Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat.

Iec nema standard torques iec and nema torque classifications of electrical motors. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions. Electrical motor shaft power electrical motors are rated in horsepower or watt. For example in the two digit 56 frame the d dimension is 3 56 divided by 16 3.

56j face 5has 3a threaded shaft of stainless steel while all others have a keyed steel shaft. The largest of the current fractional horsepower frame sizes is a 56 frame which is available in horsepowers greater than those normally associated with fractionals. 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. Association frame size refers to mounting only and has no direct bearing on the motor body diameter.

Pre nema motor dimension chart frame u v d 2f e 203 204 224 225 254 284 324 324s 326 326s 364 364s 356 365s 3 4 3 4 1 1 1 1 8 1 1 4 1 5 8 1 5 8 1 5 8. Motor dimensional chart nema c and j face mounting dimensions mounting dimensions of 1the 156j face are exactly the same as the nema 456c. For c flange motors refer to diagram 2. For a two digit frame divide the frame number by 16 to arrive at this dimension.

Diagram 2 diagram 3 square flange 56h combination foot 56 143t 145t common to all squirrel cage motors frame d e f ba u n w key size 42 2 5 8 1 3 4 27 32 2 1 16 3 8 1 1 8 05 flat. Electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase. For example in the two digit 56 frame the d dimension is 31 2. In any standard frame number designation there are either two or three numbers.

The frame number relates to the d dimension distance from center of shaft to center bottom of mount. Typical examples of frame numbers 48 56 145 and 215. 56 divided by 16 31 2. Foot refer to diagram 1.

Frame 42 48 56 56h 143t 145t 182 184 182t 184t 213 215 213t 215t 254u 256u 254t 256t 284u 286u 284t 286t 284ts 286ts 324u 326u 324t 326t 324ts. Similarly a 56 frame motor would have a shaft height of 3 1 2 inches. For example 56 frame motors are built in horsepowers up to 3 hp and in some cases 5 hp.