Table of Contents
What does 56H frame mean?
H — Used on some 56 frame motors, “H” indicates that the base is suitable for mounting in either 56, 143T, or 145T mounting dimensions.
What is the frame size of an electric 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.
What is a NEMA frame 56 motor shaft diameter?
NEMA electrical motor frame dimensions
| NEMA Frame Designation | Frame Dimensions (inches) | |
|---|---|---|
| D | U | |
| 56 | 3 1/2 | 5/8 |
| 56C | 3 1/2 | 5/8 |
| 56H | 3 1/2 | 5/8 |
What is the difference between a 48 and a 48Y frame motor?
The only difference between the 56Y and 48Y frame is the circumference of the motor. They will both mount to the seal plate of the pump.
What size is a 56 frame motor?
3 1/2
NEMA Electric Motor Frame Chart
| NEMA FRAME | D* | H (dia.) |
|---|---|---|
| 56 | 3 1/2 | 11/32 slot |
| 56H | 3 1/2 | 11/32 slot |
| 56HZ | 3 1/2 | ** |
| 66 | 4 1/8 | 13/32 slot |
What size is a 48 frame motor?
NEMA T FRAME DIMENSIONS
| Nema Series | D | H |
|---|---|---|
| 48 | 3 | 11/32 Slot |
| 56 56H | 3 1/2 | 11/32 Slot |
| 143T 145T | 3 1/2 | 11/32 |
| 182T 184T | 4 1/2 | 13/32 |
What size shaft is on a 56 frame motor?
The two digit frame number is based on the shaft height in sixteenths of an inch. Therefore, a size 48 frame motor will have a shaft height of 48 ÷ 16 = 3 inches. A 56 sized frame motor would have a shaft height of 3-1/2 inches.
What is a 56 frame motor?
Specifically “Frame” refers to the diameter of the armature in the motor. Although 2 motors may have the same horsepower rating, a 56-Frame motor will be 40% larger. It will also run cooler and last longer.
What is a DP motor?
DP – Drip-Proof An open motor in which the ventilating openings are so constructed that drops of liquid or solid particles falling on it, at any angle not greater than 15 degrees from the vertical, cannot enter either directly or by striking and running along a horizontal or inwardly inclined surface.
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.
How big is the base of a NEMA 56h motor?
** Base of 56HZ frame motors has holes and slots to match NEMA 56, 56H, 143T and 145T mounting dimensions. @ Certain NEMA 56Z frame motors have 1/2″ x 1 1/2″ long shaft with 3/64″ flat. These exceptions are noted in the General Catalog.
What are the dimensions of NEMA frame number 145?
In frame number 145, for example, the first two digits divided by the constant 4 is equal to the “D” dimension, 14 divided by 4 = 3½”. Similarly, the “D” dimension of a 213 frame motor is 5¼”, 21 divided by 4 = 5¼”. By NEMA definition, two—digit frame numbers are fractional frames even though 1 HP or larger motors may be built in them.
How big is a fractional horsepower motor frame?
FRACTIONAL HORSEPOWER MOTORS The term “fractional horsepower” is used to cover those frame sizes having two digit designations as opposed to the three digit designations that are found in Tables 1 and 2. The frame sizes that are normally associated with industrial fractional horsepower motors are 42, 48, and 56.
How tall is the shaft of a 56 horsepower motor?
frame motor would have a shaft height of 3-1/2 inches. 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. For example, 56 frame motors are built in horsepowers up to 3 HP and in some cases, 5 HP.