Answer / eswar

ball bearing are used to medium radial loads and roller
bearings are used to the heavy radial loads and roller
bearing are are create more friction.

Answer / sethu

according to the application only we have to choose the
bearing.,and also we have to choose according to static and
dynamic load rating.

Answer / yatin

ball bearing is point contact bearing while roller bearing
is line contact bearing.so ball bearing is use for medium
radial load & roller bearing is use for medium axial load.

Answer / aashish pathak

because the ball bearing can not give the perfect shape to
the wor and cause more defects

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