T Frame Motor Meaning

T frame motor designs are based on utilizing class b insulation with a temperature rating of 130 c.

T frame motor meaning.

Dimension of a 213 frame motor is 5 21 divided by 4 5. To accommo date the larger mechanical horsepower capability shaft and. Motors designated 56h have two sets of 2f mounting holes 3 and 5. These motors are generally made to manufacturers specifications.

Three digit frame numbers are by definition integral frames. T frame motor designs are based on utilizing class b insulation with a temperature rating of 130 c. Electrical motor shaft power electrical motors are rated in horsepower or watt. D dimension shaft height of a motor or generator in these frame sizes equals the value of the first two digits in the frame number.

Y square with threaded shaft y frame motors feature a square metal flange for bolting to the pump housing. 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. The motor designs were such that the capability would be used at the hottest spot within the motor. The third numeral indicates the distance between the mounting holes parallel to the base.

C round flange with keyed shaft these motors have a notch that runs the length of the exposed motor shaft. Y a y indicates that the motor has a special mounting configuration. No details may be assumed regarding this designation. 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.

Electrical motor efficiency ratings nema electrical motor efficiency ratings. Discontinued nema frame. 284 frame is 28 4 7 d 7 lp or lph. See nema mg1 1998 18 78 for example.

This increase in temperature capability made it possible to pack more horsepower into the same size frame. This motor is a modern standard t frame motor. Certain nema 56z frame motors have 1 2 x 1 1 2 long shaft with 3 64 flat. Base of 56hz frame motors has holes and slots to match nema 56 56h 143t and 145t mounting dimensions.

Sizes ran at very low temperatures. Standard short shaft for direct drive applications. Suffixes to nema frames and what they mean. J round flange with threaded shaft this is the standard for round flange motors for modern pumps.

By nema definition two digit frame numbers are fractional frames even though 1 hp or larger motors may be built in them. T a t indicates that the motor is of the 1964 and later t frame vintage. U a u indicates that the motor is of the 1952 1964 u frame vintage. The j frame features a threaded shaft for impeller installation.

The u frame motors were designed for use with class a insulation which has a rating of 105 c. Critical mounting dimensions for all manufacturers are as defined in nema standard mg 1.