# What is the diameter of a stepper motor?

## What is the diameter of a stepper motor?

NEMA 17 1.8 degree 200 steps-per-revolution four-phase unipolar permanent-magnet stepper-motor

Stepper Motor Specifications
Shaft diameter: 0.197 in. (5 mm)
Motor footprint: 1.7 in. × 1.7 in.
Motor height: 1.5 in.
Ambient temperature: -10°C to +55°C

## What are the dimensions of a NEMA 34 stepper motor?

3.4 x 3.4 inch
A Nema 34 stepper motor is a stepper motor with a 3.4 x 3.4 inch (86 x 86 mm) faceplate.

What is the size of a NEMA 23 stepper motor?

2.3 x 2.3 inch
A Nema 23 stepper motor is a stepper motor with a 2.3 x 2.3 inch (57 x 57 mm) faceplate.

What is NEMA frame size?

NEMA Frame/Shaft Sizes 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. Typical examples of frame numbers 48, 56, 145, and 215.

### What is the difference between NEMA 23 and NEMA 34?

The decision between NEMA 23 and NEMA 34 motors is primarily a decision about productivity — NEMA 34 motors can remove material at a higher rate using higher feed rates and deeper cut depths.

### What is the frame size of motor?

The frame sizes normally associated with 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.

How is NEMA frame size determined?

Just divide the first two digits by four. Thus, a 405 frame (original, U frame, or T frame) has a shaft height of 40 divided by 4, or 10 in. Although no direct inch measurement relates to it, the third digit of three-digit frame sizes is an indication of the motor body’s length.

What are the sizes of NEMA motors?

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.