... ISO JIS ANSIBrief introductionHigh Precision High Rotational Speed Cnc Live Center,Website:http://www.qfmh-tools.com, machine tool parts ... and high durability3. precision≤5μ,high speed 12000rpm4. Live center adopts precision matched angular contact bearing and integration with roller ... influene the bearing,prolong the life of the live center.1. Application and features:It is an necessary accessory ...