1. Mechanical precision angular contact ball bearings that matches the requirements
With high dimensional accuracy and precision, surface accuracy, especially with SKF bearings with the same level of control, and this is crucial, but it is also the most neglected.
2. With precision bearings
After the installation is complete, ensure do not produce excessive deformation of the bearing must be:
(1) the shaft and hole of the round, and with the appropriate level of precision requested vertical shoulder block bearing.
(2) in order to accurately calculate the degree of interference with the rotating ring, but also accurately calculate an appropriate number of match fixing ring.
Amount of rotation degrees of interference may occur should also get smaller. As long as the operating temperature to ensure thermal expansion, as well as the role of the fastest speed of centrifugal force, effect or slide to avoid surface creep close. Fixed based on workload and bearing size, select a very small clearance fit or interference, too loose or too tight is not conducive to the maintenance of exactly the same shape.
(3) in areas such as high speed, FAG bearings and higher operating temperatures, special attention should be paid to the rotating ring, not too loose, to prevent the eccentricity, and cannot be fixed ring gap to prevent deformation of the load and vibration excitation in the ring.
(4)-min interference conditions, with both high surface accuracy, low roughness, or difficult, more difficult to remove installed, you also need to consider the spindle thermal elongation.
(5) dual-spindle double angular contact ball bearings, most of the lighter loads, such as its large number of interference, axial preload path within it, is significantly oversized, resulting in adverse effects. Double row cylindrical roller bearings and Taper roller bearing spindle, large load, so its relatively large interference.
3. Superior methods and practical accuracy
In order to improve the precision angular contact ball bearings with the actual installation, you may make use of bearing deformation measurement method and measurement tools, and actual accurate measurement of the surface size bearings with a cylindrical bore, and outer diameter measurement data for comprehensive analysis based on the hole size tolerance on the location and installation of NSK bearings. With the corresponding geometry and the bore axis and actual measurements, should have the same temperature conditions measuring bearing.