Electric Motor Base Dimensions

See motor mount selection chart type 2 b standard base.

Electric motor base dimensions.

For c flange motors refer to. 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. 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. Bases for variable speed applications allow movement while operating to compensate for vibration and varying loads.

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. The following specifications documents and dimension charts are available as acrobat pdf files. We would like to show you a description here but the site won t allow us. Electrical induction motors synchronous speed the speed at which an induction motor operates depends on the input power.

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. 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. Motor bases are fabricated of steel which offers a base of rugged design compact and smooth in appearance. Foot mounting dimensions listed are identical for either rigid or resilient base mounting.

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. 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. Drawing shows rigid base.

For 56h combination foot refer to diagram 1. Electric motor efficiency calculate electric motor efficiency. Electrical electrical units amps and electrical wiring wire gauge and awg electrical formulas and motors. Electric motor calculator calculate amps hp and kva.