What Does Frame Mean On Electric Motors

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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 is the difference between a 56 and 56H frame?

H — Used on some 56 frame motors, “H” indicates that the base is suitable for mounting in either 56, 143T, or 145T mounting dimensions. J — This designation is used with 56 frame motors and indicates that the motor is made for “jet pump” service with a threaded stainless steel shaft and standard 56C face.

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 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 is an 80 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 80 & 90. In terms of mounting, these motors can replace each other and other motors with the same frame size.

What does TC mean on motor frame?

• Totally Enclosed Fan Cooled (TEFC) enclosure. • NEMA TC-frame (C-face) and T-frame motors. • Cast iron frame with ribbed design for maximum cooling. • Solid full frame length cast iron mounting feet. • Steel fan cover.

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.

How do you check a motor frame?

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 is frame 56c?

From 1/3rd to 2HP, 1800 and 3600 RPM this C-flange motor includes removable feet for general purpose use on pumps, fans, blowers, air compressors and table saws and conveyors and other machines installed in damp, dusty or dirty industrial environments.

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 NEMA 56C mean?

NEMA set standards of height, width and length for electrical devices so that one manufacturer’s products could easily interchange with another’s. Standard 56C defines the bolt hole spacing of mounting face plates for electrical devices, and these measurements are closely adhered to by all NEMA members.

What does switchless motor mean?

PERMANENT SPLIT CAPACITOR – This design does not have a start switch and is often referred to as a “switchless” motor. It uses a run capacitor that remains in the circuit at all times.

What is a pump frame?

Frame Mounted Pumps Frame-mounted pumps are mounted next to a motor on a common baseplate, with the pump shaft and the motor shaft connected by a flexible coupling. The design includes a bearing housing to prolong the life of the bearings and allows for continuous operation with high radial and thrust loads.

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 shaft?

Resistance to twisting method The other way to calculate minimum shaft size for a motor is to set a limit on the amount of torsional deflection (twisting) that may occur. Resistance to torsional stress is directly proportional to shaft size: the larger the diameter, the greater the resistance to twisting.

How do you read a motor nameplate?

RPM (Speed) The RPM listed on the nameplate is the shaft speed for the motor. The speed of the motor is directly related to the frequency of the line voltage and the number of poles in the motor. At 60 Hz, a 4 pole motor will rotate at approximately 1800 RPM (7200/4 poles).

What type of shaft does a 56y frame motor have?

Its large 6.5 frame boasts a stainless steel shaft for extremely durable housing and its thermally protected, Class B insulated design keeps the motor cool to prevent overheating.

What is a shaft motor?

The shaft in a motor is a cylindrical component that extrudes out from the motor and its housing. The purpose of the shaft is to convert energy from the motor into the end use application. Precision pins and shafts operate as a function of speed vs torque.

What useful information is obtained from the motor frame type?

The frame size data on the nameplate is an important piece of information. It determines mounting dimensions such as the foot hole mounting pattern and the shaft height. The frame size is often a part of the type designation which can be difficult to interpret because special shaft or mounting configurations are used.

What is Tefc enclosure?

Totally Enclosed, Fan-Cooled (TEFC) Motors have an external fan which circulates outside air to the motor. Totally Enclosed, Nonvented (TENV) Motors do not have air openings. While air does not freely move between the inside and outside, the motor’s construction is not air- or liquid-tight.

What is meant by NEMA 34 size motor?

NEMA (National Electrical Manufacturers Association) 34 is a stepper motor with a 3.4×3.4 inch faceplate and 1.8° step angle. Each phase draws 4.0 A, allowing for a holding torque of 42 kg-cm. NEMA 34 Stepper motor is generally used in Printers, CNC machine, Linear actuators and hard drives.

What does NEMA 23 stand for?

NEMA 23 is a stepper motor with a 2.3×2.3 inch (58.4×58.5 mm) faceplate and 1.8° step angle (200 steps/revolution). Each phase draws 2.8 A at 3.2 V, allowing for a holding torque of 19 kg-cm. NEMA 23 Stepper motor is generally used in Printers, CNC machine, Linear actuators and hard drives.

What does NEMA 17 stand for?

NEMA 17 stepper motors’ means is a stepper motor type specified by NEMA. NEMA 17 stepper motor is a stepper motor with a 1.7 x 1.7 inch (42 x 42 mm) faceplate. The Nema 17 stepper motor is larger and generally heavier than a Nema 14 stepper motor, but this also means it has higher torque.

Who makes century electric motors?

Century Electric Motor Company, previously AO Smith Motors, is part of the Regal Beloit family.

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