What is the C dimension on an electric motor?
C-FACE. XO denotes clearance for the capacitors of single phase motors through the 215T frame. On three phase 254T frame and large motors, T denotes clearance for the lifting eyebolt. The overall length (“C” dimension) will change with the enclosure, horsepower, and speed for the same brand.
What is a NEMA C face motor?
A “C-Face” motor is a common American mechanical standard designed with a rugged flange on the face of the motor for mounting purposes. The weight of the. motor is supported by the flange, which is most commonly attached to a gearbox.
What are NEMA motor sizes?
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 are NEMA frame sizes?
Electrical motors NEMA frame dimensions.
| NEMA Frame Designation | Frame Dimensions (inches) | |
|---|---|---|
| D | N-W | |
| 56HZ | 3 1/2 | 2 1/4 |
| 56J | 3 1/2 | 2 7/16 |
| 66 | 4 1/8 | 2 1/4 |
What size is my electric motor shaft?
The frame number relates to the “D” dimension (distance from center of shaft to center bottom of mount). For a two digit frame divide the frame number by 16 to arrive at this dimension. For example, in the two-digit 56 frame, the “D” dimension is 3½” (56 divided by 16 = 3½”).
How is engine frame size measured?
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.
How big is a NEMA 17 motor?
1.7 inches x 1.7 inches
The Nema17 stepper motor is a stepper motor with an end face size of 1.7 inches x 1.7 inches.
What is NEMA 34?
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.
How do you measure motor shaft size?
Inputs that we need to calculate shaft diameter
- τ = Torsional stress induced at the outer surface of the shaft (Maximum Shear stress).
- r = Radius of the shaft.
- T = Twisting Moment or Torque.
- J = Polar moment of inertia.
- C = Modulus of rigidity for the shaft material.
- l = Length of the shaft.
How does a NEMA C face motor mount work?
The NEMA C-Face mount incorporates a machined-face flange and a pilot on the end of the shaft to allow direct-coupling with equipment. Bolts pass from the mounting-face through threaded-holes in the motor. The C-face is the most readily available type other than a standard Welded Base.
What are the features of a C face motor?
This is the most popular type of face mounted motor and has a specific bolt pattern on the shaft end to allow mounting. The critical items on C face motors are the bolt circle (AJ dimension), rabbet diameter (AK dimension) and the shaft size (U dimension). C flange motors always have threaded mounting holes in the face of the motor.
What is the C suffix on a NEMA frame?
In addition to the standard numbering system for frames, there are some standardized variations that are denoted by the following suffixes to the NEMA number. C Designates a C flange/face mounted motor, e.g., “NEMA 56C frame”.
What is the frame size of a NEMA?
Providing torque up to 1,500 oz-in (1,059 N-cm), these synchronous motors are available in UL Listed versions suitable for use in Class I, Division 1, Group D hazardous locations. Frame sizes are NEMA 42 and 66 (110 mm and 170 mm).