Electric Motor Base Dimensions

Increase energy efficiency in belt driven systems while reducing wear on components use one of these bases to adjust your motor position to get the proper belt tension.

Electric motor base dimensions.

Drawing shows rigid base. Electric motor calculator calculate amps hp and kva. Dimensions drip proof totally enclosed fan cooled and explosion proof. 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.

Motor bases are fabricated of steel which offers a base of rugged design compact and smooth in appearance. Bases for variable speed applications allow movement while operating to compensate for vibration and varying loads. The following specifications documents and dimension charts are available as acrobat pdf files. Electrical induction motors synchronous speed the speed at which an induction motor operates depends on the input power.

Standardized motor dimensions are established by the national electrical manufacturers association nema are tabulated below and apply to all base mounted motors listed herein that carry a nema frame designation. For c flange motors refer to. Bases for constant speed applications keep your motor in a fixed position while operating. See motor mount selection chart type 2 b standard base.

The following are dimensional size charts for standard electric motor nema standard frames and configuration. We would like to show you a description here but the site won t allow us. Heavy duty motor base style c2hd nema frame sizes 254 449 double adjusting heavy duty bases or standard rails are recommended for motors between 150 hp 1800 rpm and 250 hp 1800 rpm on non severe applications. 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.

All dimensions are approxi mate not to be used for construction purposes. Electric motor efficiency calculate electric motor efficiency. 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. Bases are design to provide adequate travel are fully adjustable by the use of a single adjusting screw and have elongated mounting holes in the base plate.