Electric Motor Base Dimensions

Electrical induction motors synchronous speed the speed at which an induction motor operates depends on the input power.

Electric motor base dimensions.

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. Motor bases are fabricated of steel which offers a base of rugged design compact and smooth in appearance. Bases for constant speed applications keep your motor in a fixed position while operating. The following are dimensional size charts for standard electric motor nema standard frames and configuration.

Drawing shows rigid base. For 56h combination foot refer to diagram 1. Electric motor calculator calculate amps hp and kva. Bases for variable speed applications allow movement while operating to compensate for vibration and varying loads.

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

See motor mount selection chart type 2 b standard base. Foot mounting dimensions listed are identical for either rigid or resilient base mounting. All dimensions are approxi mate not to be used for construction purposes. 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. Dimensions drip proof totally enclosed fan cooled and explosion proof. For c flange motors refer to. 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.