... 2.Fast delivery 3.Market.America,German,Italy,Japan,Korean electric spindles Luoyang Bearing Science and Technology Co.,Ltd.has ... developed 8 groups,20 series,200 varieties of electric spindles with rated speed from 5,000 r/min ... sales of precision bearings, special bearings, high-frequency electric spindles for machine tool, special technical equipments for bearing, testing instruments and ...