INA NA4920 bearings have Superb technology of rolling bearing , advanced technology production factories, superior quality standard and all this make INA NA4920 bearings renowned and enduring in the world . The performance of INA NA4920 bearings has been fully demonstrated through millions of actual application . INA NA4920 bearings is reliable mechanical parts with both costs and benefits . INA NA4920 bearings provide a variety series of different size to rotary motion, linear motion and a variety of special technology .The INA NA4920 bearings widely used in : agricultural machinery industry, construction industry, water and wind power engineering industry, semiconductor industry, pump and fan industry, industrial robots and automation industry, textile industry, tractor industry, woodworking machinery industry