Table of Contents
How do you measure the frame of a motor?
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 size is a 42 frame motor?
NEMA T FRAME DIMENSIONS
| Nema Series | D | H |
|---|---|---|
| 42 | 2 5/8 | 9/32 Slot |
| 48 | 3 | 11/32 Slot |
| 56 56H | 3 1/2 | 11/32 Slot |
| 143T 145T | 3 1/2 | 11/32 |
What is a motor frame number?
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 3½”, 56 divided by 16 = 3½”.
What is a frame 80 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 80 & 90. In terms of mounting, these motors can replace each other and other motors with the same frame size.
What is ND in motor frame size?
It is the speed of the motor in Revolution Per Minutes. It means, the motor shafts rotates 1480 revolution in one minute. It says about the full load capacity of the motor. This data is the main part of the motor protection form over current or over load.
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 is the frame number on a electric motor?
What is difference between 48 and 56 frame 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.