Angular contact ball bearings:
(Angular Contact Ball Bearings) both radial and axial loads . To work at high speed. The contact angle , the higher the axial load carrying capacity. High-precision and high-speed bearings usually take the contact angle of 15 degrees . In the axial force, the contact angle will increase. Single row angular contact ball bearings can withstand axial load in one direction , while the radial load , will cause additional axial force. And only limited axial displacement in one direction or housing . Angular contact ball bearings contact angle of 40 degrees , it can withstand large axial load. Angular contact ball bearings are non- separable design, the shoulder on both sides of the inner and outer rings uneven . In order to improve the load bearing capacity , which will shoulder a lower side of the processing , so that the bearing can put more balls . If paired installation , make a pair of bearing outer ring relative to that wide side face of wide and narrow side facing the narrow end . This can avoid additional axial force , and the shaft or housing to limit axial clearance within the range in both directions. Its inner and outer ring raceway relative displacement on the horizontal axis , so it can support radial load and axial load - combined load ( single row angular contact ball bearings can withstand axial load in one direction , so often using installed in pairs ) .
Cage made ​​of brass , synthetic resins, etc. , depending on bearing features and application conditions.
Accuracy class
Angular contact ball bearings include dimensional tolerances and accuracy class rotation accuracy . From low to high precision expressed as P0 ( general ), P6 (P6X), P5, P4, P2. In addition, European and American brands also used P3, P7, P9 , said precision grade , P3 equivalent to ISO and JIS standards P6 level , P7 level equivalent to P4 , P9 is equivalent to P2 level .
      Installation Tips
High-speed precision angular contact ball bearings , mainly for high-speed rotation of occasions lighter loads , requiring high precision bearings , high speed, low vibration and low temperature rise some life. Often high-speed spindle bearing installed in pairs , the inner surface grinder spindle speed key component parts .
The main technical indicators:
A bearing accuracy specifications : Over GB/307.1-94 P4 level precision
2 high-speed performance indicators :. DmN value 1.3 ~ 1.8x 106 / min
(3) life ( average ):> 1500 h
High-speed precision angular contact ball bearing life and install a great relationship , you should note the following
1 . Bearing installation should be in the clean , clean room , bearing should carefully matching, bearing spacers to go through the grind , while maintaining the contour of the inner and outer ring spacers premise spacer should be controlled in parallel 1um the following ;
2 bearings should be cleaned before installing clean, cleaning the inner slope upward , feel should be flexible , no sense of stagnation , dry , placed in a predetermined amount of grease, oil mist lubrication should be placed in the case of a small amount of oil mist ;
3 bearing installation tool should be used exclusively , even by force , is strictly prohibited beat ;
4 bearing store should be clean and ventilated , non-corrosive gases, relative humidity less than 65% , long-term storage should be regularly rust.
      The main purpose
Single row angular contact ball bearings: machine tool spindles , high frequency motors, gas turbines , centrifuges, small car front wheel , differential pinion shaft
Double row angular contact ball bearings: pump, blower , air compressor , various types of transmission, fuel injection pumps , printing machinery