The difference between face to face and back to back angular contact bearings, mechanical characteristics of this issue should be part of "bearing suits or anti-loaded" questions when the angular contact bearings two small end to the inside part of the anti-loaded "back to back" two small side out for dress "face to face "The maximum load and load torque, axial positioning of the best back to back installation bear; face a certain axial clearance aligning ball bearings 1309K, load bearing 51222 small injection molding machines, basically not used. Currently the most used is mounted back to back. Face to face, depending on how the installation according to the theory of mechanics can be calculated radial load and axial load in accordance axis has to traverse trend which side to determine which "relax," "pinch" "Relax end" of the axial force only derive its own force "pressing end" of the axial force was removed by force itself derived axial force outside the rest of algebra and various high-speed precision angular contact ball bearing axial force installation methods, what to pay attention to? High-speed precision angular contact ball bearings, mainly for high-speed rotating load lighter occasions, requiring high precision bearings, high speed, low vibration and low temperature rise limited life. Often high-speed spindle bearing installed in pairs, the inner surface grinder spindle speed key component parts. The main technical indicators 1. Bearing precision index: More than GB / 307.1-94P4 level precision 2. High-speed performance: dmN value of 1.3 ~ 1.8x106 / min aligning ball bearings 1309K, bearings, bearing Electrical Shun GF GF by the Shenzhen-bearing Electrical Trade Limited. Shenzhen City, Guangdong Development bearing Electrical Co., Ltd. (www.sgfzc.com) (www.sgfzc.com) strong, credible, in other industries, Guangdong Shenzhen accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Shun GF bearing Electrical and you hand into the brilliant, for a better future!