Electric Motor Base Dimensions

All dimensions are approxi mate not to be used for construction purposes.

Electric motor base dimensions.

Bases for variable speed applications allow movement while operating to compensate for vibration and varying loads. The following are dimensional size charts for standard electric motor nema standard frames and configuration. Foot mounting dimensions listed are identical for either rigid or resilient base mounting. Electrical induction motors synchronous speed the speed at which an induction motor operates depends on the input power.

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. 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. We would like to show you a description here but the site won t allow us. Electrical electrical units amps and electrical wiring wire gauge and awg electrical formulas and motors.

See motor mount selection chart type 2 b standard base. 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. Drawing shows rigid base. 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.

Electric motor calculator calculate amps hp and kva. The following specifications documents and dimension charts are available as acrobat pdf files. Dimensions drip proof totally enclosed fan cooled and explosion proof. 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.

For 56h combination foot refer to diagram 1. Motor bases are fabricated of steel which offers a base of rugged design compact and smooth in appearance. 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. For c flange motors refer to.