Ac Induction Motor Frame Sizes

For this type of frame you will have to get clarification on dimensions from the motor oem.

Ac induction motor frame sizes.

Figure 1 typical induction motor nameplate information. Dimension v is shaft length available for coupling pinion or pulley hub this is a minimum value. Ac induction motor 5 anema electric motor 5 electric motor rotor 5 variable frequency drive 5. For the squirrel cage 3 phase induction motors of 1000v or lower.

This name plate shows a frame size 326t. Motor dimensional chart nema c and j face mounting dimensions mounting dimensions of 1the 156j face are exactly the same as the nema 456c. 1 2 1 standard induction motors abb offers two types of low voltage induction motor series. 56c 56hc 56j 143tc and 145tc.

Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat. The frame size provides a standard for details such as the location of mounting holes a height of the shaft above the mounting plate etc. Manufacturer s type and frame designation nema defines standard frame sizes. Dimensions of electrical motor frames according nema 1984 are indicated below.

56j face 5has 3a threaded shaft of stainless steel while all others have a keyed steel shaft. Waterproof ac induction motors wd frame sizes waterproof ac induction motors the wd series of stainless steel house ac induction motors have been designed for use in application where they will be subjected to frequent wetting or washdown. Now you do have to be careful in regard to medium voltage or high voltage motor frame sizes as these are not regulated like the nema frames. These exceptions are noted in the general catalog.

Process performance and general performance motors. You can figure that a 48 frame motor will have a shaft height of 48 divided by 16 or 3 inches. Frame size 2 pole 4 pole 6 pole 100 5200 3600 2400 112 5200 3600 2400 132 4500 2700 2400 160 4500 2700 2400. The first are the most commonly chosen induction motors for demanding industrial uses and cover frame sizes 63 450 or 0 12 1 000 kw.

1 in inch 25 4 mm 1 inch 25 4 mm sorry to see that you are blocking ads on the engineering toolbox. Cage 3 phase induction motors lower than 1000v and smaller than 315 frame size can safely run continuously at the speed in the table below. 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.