Secon offers the following high-speed spindle units for various applications grinding/drilling/turning/milling/polishing/ engraving/fine boring, etc., in bt-30, bt- 40, bt-50 tapers at a very competitive price. High rigidity, high precision, high speed, belt driven type "b" series, and direct driven type "d" series spindles are ideal for machining centre applications, from 8,000 to 20,000 rpm and from bearing sizes 40 to 110 dia];cartridge spindles for turning high speed/high precision "bl" series for nc lathe and bv series for vertical nc lathes from 3000 to 8000 rpm bearings [65 to 130 dia] and from 2500 to 3000 rpm bearings [130 to 160 dia] respectively.