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. In these motors, specific frame assignments do not relate to horsepower and speed.
What is a 180 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 180. In terms of mounting, these motors can replace each other and other motors with the same frame size.
How do you measure a motor frame size?
The derivation of the two digit frame number is based on the shaft height in sixteenths of an inch. You can figure that a 48 frame motor will have a shaft height of 48 divided by 16 or 3 inches. Similarly, a 56 frame motor would have a shaft height of 3-1/2 inches.
What is meant by frame size?
Frame size generally refers to frame height, the length of the seat tube from the bottom bracket (crank bearing) to the top tube.
What is a 184 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 184. In terms of mounting, these motors can replace each other and other motors with the same frame size.
What does the T mean in a motor frame size?
The letter T in a frame size tells you frame number that has been standardized by NEMA so that horsepower, speed, and certain dimensions will be the same for all motors with that frame size. These dimensions include the shaft diameter, shaft height, shaft length, mounting-base dimensions and bolt-hole sizes.
What is a 182 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 182. In terms of mounting, these motors can replace each other and other motors with the same frame size.
What is the difference between 48 Frame 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.
What does 48Y frame mean?
The Flex-frame motors are usually labeled as 48Y, but will have the distinct pedestal at its base. The Flex is unique because it uses four thin partially threaded screws (known as thru bolts) that are slid the length of the motor through the back end and screwed into the seal plate.
What does TC mean on motor frame?
Three-Phase Cast Iron T-Frame.
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 does C face motor mean?
• C – Designates a “C” face (flange) mounted motor. This is the most. popular type of face mounted motor and has a specific mounting bolt pattern. The critical items on C face motors are the “bolt circle” (AJ dimension), register (also called the rabbet) diameter (AK dimension), and the shaft size (U dimension).
What does frame mean on a motor?
The frame size of a motor defines its mechanical interface to attached actuators. Motors of the same frame size can have different power, torque etc. but feature the same geometrical properties. The length of the motor housing is not affected by the frame size.
What is a 48 frame electric 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 48. In terms of mounting, these motors can replace each other and other motors with the same frame size.
