Nema motor dimensions reference chart.
56 frame motor shaft size.
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.
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.
Foot refer to diagram 1.
56 divided by 16 31 2.
Dimension v is shaft length available for coupling pinion or pulley hub this is a minimum value.
For example 56 frame motors are built in horsepowers up to 3 hp and in some cases 5 hp.
Association frame size refers to mounting only and has no direct bearing on the motor body diameter.
The frame number relates to the d dimension distance from center of shaft to center bottom of mount.
For example in the two digit 56 frame the d dimension is 3 56 divided by 16 3.
Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat.
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.
These exceptions are noted in the general catalog.
For example in the two digit 56 frame the d dimension is 3 56 divided by 16 3.
Diagram 1 suffix y special mount dim.
For the d dimension of a three digit frame number consider only the first two digits and use the divisor 4.
56j face 5has 3a threaded shaft of stainless steel while all others have a keyed steel shaft.
Iec nema standard torques iec and nema torque classifications of electrical motors.
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.
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.
Suffix z special shaft dim.
For a two digit frame divide the frame number by 16 to arrive at this dimension.
And apply to all base mounted motors listed herein that carry a nema frame 1designation.
Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions.
Similarly a 56 frame motor would have a shaft height of 3 1 2 inches.
Electrical motor shaft power electrical motors are rated in horsepower or watt.
Motor dimensional chart nema c and j face mounting dimensions mounting dimensions of 1the 156j face are exactly the same as the nema 456c.
The frame number relates to the d dimension distance from center of shaft to center bottom of mount.
Electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase.
The frame number relates to the d dimension distance from center of shaft to center bottom of mount.
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.
