What are frame sizes for motors?

What are frame sizes for motors?

The frame sizes that are normally associated with industrial fractional horsepower motors are 42, 48, and 56. In this case, each frame size designates a particular shaft height, shaft diameter, and face or base mounting hole pattern.

What is a NEMA frame motor?

There are many motors of the same horsepower built in different frames. NEMA (National Electrical Manufacturers Association) frame size refers to mounting only and has no direct bearing on the motor body diameter. In any standard frame number designation there are either two or three numbers.

What is NEMA motor size?

Step motors are categorized by NEMA frame size, such as “size 11” or “size 23” or “size 34”. Generally speaking, a size 11 step motor means the mounting face of the motor is 1.1 inches square; A size 23 step motor is 2.3 inches square; A size 34 step motor is 3.4 inches square, etc.

What is a 56 frame motor?

A motor’s frame size is a reference to the size of the mounting footprint, shaft diameter, and shaft length. These motors are all frame size 56. In terms of mounting, these motors can replace each other and other motors with the same frame size.

What are NEMA frame sizes?

NEMA FRAME	D*	U>
56HZ	3 1/2	7/8
66	4 1/8	3/4
143T	3 1/2	7/8
145T	3 1/2	7/8

How many NEMA sizes are there?

Electromate provides a range of hybrid stepper motors with frame sizes from NEMA 8 to NEMA 66. All NEMA stepper motors are available in 4, 6, or 8 lead configurations for bipolar or unipolar operation.

What is the difference between a 48 frame and a 56 frame electric motor?

The main difference between a 48 frame and a 56 frame hot tub pump is that the 48 frame has a smaller motor housing and so the 4 through bolts that fasten the wet end to the motor are closer together on the smaller motor.

What size is a 48 frame motor?

Electrical motors NEMA frame dimensions.

NEMA Frame Designation	Frame Dimensions (inches)
D	N-W
42	2 5/8	1 1/8
42C	2 5/8	1 1/8
48	3	1 1/2