Electric Motor Shaft Size Chart

The motor guide basic technical information about low voltage standard motors 1 3pmd 3 3162005.

Electric motor shaft size chart. Use tables 4 6 for 1953 nema reratings u frames. Also included is the shaft length and keyseat width. Short shaft motors are designed to be directly coupled to a load through a flexible coupling love joy etc. Standard motor catalogue aesv2e aesu2e series teco westinghouse motor company teco westinghouse motor company teco electric europe ltd middle east atlas diba engineering trade co.

Association frame size refers to mounting only and has no direct bearing on the motor body diameter. These shaft diameters are based on the 1964 nema reratings. 1011 shaft seals 130 1012 low speed operation 130. In any standard frame number designation there are either two or three numbers.

Abb power technologies serves electric gas and water utilities as well as industrial and commercial customers. Frame size 2 pole 4 pole 6 pole 100 5200 3600 2400 112 5200 3600 2400 132 4500 2700 2400. Based on motor hp. Electrical motor shaft power electrical motors are rated in horsepower or watt electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase.

Use table 3 to find the shaft diameter for that motor. Industrial electric motors and drives nemakeyseat nemakeyseat shaft dimensionsshaft dimensions ur su rs 38 2164 flat 1 78 1 1932 12 12 2964 flat 2 18 1 2732 12. Short shaft motors have shaft dimensions that are smaller than the shafts associated with the normal frame size. Standard short shaft for direct drive applications.

T indicates that the motor is of the 1964 and later t frame vintage. Iec quick reference chart iec frame type foot mounting shaft b5 flange b14 face general a b c h d e la m n p s t l ac ad hc xx 63 300 100 3937 80 3150 40. At certain nema 56z frame motors have 12 x 1 12 long shaft with 364 flat. Typical examples of frame numbers 48 56 145 and 215.

The above chart provides typical baldorreliance motor dimensions. Nema quick reference chart nema frame de2f h nop uvaa ab ah aj ak ba bb bd xo tap. The frame number relates to the d dimension distance from center of shaft to center bottom of mount. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions.

Note that nema has determined the maximum pull a motor can handle satisfactorily to prevent premature motor. Iec quick reference chart iec foot mounting shaft b5 flange b14 face general frametype abchdela mnpstmnpstlacadhcxx 102 121 13 63 300 100 80 40 63 11 23 8 115 95 140 9375 60 90 m5 25 119 44760 500. They are not designed for use in belt drive applications.