Electric Motor Base Dimensions

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

Electric motor base dimensions. The following specifications documents and dimension charts are available as acrobat pdf files. 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. Foot mounting dimensions listed are identical for either rigid or resilient base mounting. 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. 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. The following are dimensional size charts for standard electric motor nema standard frames and configuration. Electric motor efficiency calculate electric motor efficiency.

Bases for constant speed applications keep your motor in a fixed position while operating. 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. 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.

Electrical induction motors synchronous speed the speed at which an induction motor operates depends on the input power. Motor bases are fabricated of steel which offers a base of rugged design compact and smooth in appearance. 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. Dimensions drip proof totally enclosed fan cooled and explosion proof.

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. Electric motor calculator calculate amps hp and kva. Drawing shows rigid base.