Electric Motor Shaft Sizes Chart

Dimension v is shaft length available for coupling pinion or pulley hub this is a minimum value.

Electric motor shaft sizes chart.

Nema frame shaft sizes big electric effective 06 01 13 hydra mount elektrim motors learn how to retrofit hydra mount brochurenema frame shaft sizes big electric motorsnema frame shaft sizes big electric motorsquick reference motor dimensionsquick reference motor dimensionsmotor frame sizes dc brushed servo motors metric nema 23 34 42 56electric motor nema frame table. The above chart provides typical baldor reliance motor dimensions. These shaft diameters are based on the 1964 nema reratings. For more exact dimensional data please check the specific drawing for each catalog number.

Typical examples of frame numbers 48 56 145 and 215. They are not designed for use in belt drive applications. Electrical motor efficiency ratings nema electrical motor efficiency ratings. 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 2 5 119 44 760 500.

T h e s e d i m en s i o n s a r e s p e c i f i c t o e a c h m anu f a c t u r e r. Use table 3 to find the shaft diameter for that motor. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions. Also included is the shaft length and keyseat width.

Refer to table 1 for open motors or table 2 for totally enclosed fan cooled motors tefc to find a frame size based on motor hp. Electrical motor shaft power electrical motors are rated in horsepower or watt. Short shaft motors have shaft dimensions that are smaller than the shafts associated with the normal frame size. Dimensional data for 444t through 449ts frame sizes reflect the use of a top mounted conduit box with a cantilevered mounting arm.

Nema shaft u k ey r dim n s 3 8 1 2 5 8 7 8 1 1 8 1 3 8 1 5 8 1 7 8 2 1 8 2 3 8 2 1 2 2 7 8 3 3 8 3 7 8 21 64 29 64 33. Electrical motors full load amps full load currents for 460 volts 230 volts and 115 volts motors single and 3 phase. T indicates that the motor is of the 1964 and later t frame vintage. Nema motor dimensions reference chart a ft e r l e t t e r i n d i c a t e s t h e n u m b e r i s a n app r o x i m a te v a l ue.

Short shaft motors are designed to be directly coupled to a load through a flexible coupling love joy etc. 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. Leader in energy efficient industrial electric motors and drives nemakeyseat nemakeyseat shaft dimensionsshaft dimensions u r s u r s 3 8 21 64 flat 1 7 8 1 19 32 1 2 1 2 29 64 flat 2 1 8 1 27 32 1 2.

Use tables 4 6 for 1953 nema reratings u frames. In any standard frame number designation there are either two or three numbers.