The accuracy of the method in INA bearing in the host installation is completed, such as measuring the spindle radial beat, but found its every turn measurements are certain change; Continuous measurement can be found after a certain number of turn after, this change will approximate the repetition. Measure the degree of this change for cycle rotation precision index, change the approximately the repetition of the number needed to represent the accuracy of the spin cycle "quasi-periodic", among a cycle of amplitude value change, namely for cycle rotation precision is poor. As to the appropriate advance of spindle load, and will gradually rise to near work speed speed to implement INA bearing "integration" effect, can improve the circulation of the spindle rotation precision.
Improve the accuracy of the INA bearing a method such as a factory manufacture precision instruments, spindle use 6202 / P2 INA bearing and the precision of still cannot meet the requirements, bold shaft neck after and the production groove instead of inner circle, and will carry on the fine steel ball measurements to size every three grain by a group, each group of steel ball close to 120 ° from the separated, due to reduced a heavy processing surface, and reduces the heavy with surface, and at the same time, improve the shaft bearing the stiffness of a system, and the largest three goals and minimum three goals of steel ball close to isometric distribution, and also to improve the axis of rotation precision, and meet the demand for the accuracy of the instrument.




Other News:
Improve the accuracy of the INA bearing method
Coroner: Gunman in Indiana standoff from Texas
Blair: I chose not to fight the 'powerful' press
Finished product raw materials were not break the linkage
Everest season ends with 150 reaching summit
Pakistan: US missiles kill 5 militants in NW
Steel capacity head further south XiYi or aggravate endorsement unrest
World War Two battleship USS Iowa sets off on final voyage