Answer / k.prakashchandra

You may have to reduce the load more till you get the
desired temp rise

Answer / k.prakashchandra

As you have reduced the speed ,the cooling effect of the
shaft mounted cooling fan is also reduced .Either you have
to reduce the load by about 10% or replace cooling fan .

Answer / r c thakur

You have to increase the surface area of the motor,the
radiator fins can be introduced,

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