Measurement And Analysis Of Shape Error Of Ball Bearing Channel And Micro - Indentation Depth Of Channel Surface

To reduce bearing vibration and noise has been an urgent and difficult problem faced by bearing industry. With the increase and demand in low voice bearing in world market, an increasingly importance has been attached to the technique of bearing noise reduction by bearing manufacturers. Currently in the case of the widely used deep groove ball bearing, compared with the foreign advanced level, there are still problems with large vibration value, imperfect sound, short silent life and so on.The channel form error have a direct influence on the performance and accuracy of ball bearing, this paper introduces the present situation and the existing problems about bearing channel surface form error detection at home and abroad. Detailed research and analysis of the specific evaluation algorithm by ball bearing surface quality parameters including channel roundness, waviness and surface roughness and shape error of channel R.Based on the geometric characteristics of ball bearing channel, ball bearing channel surface equation is derived; Using the measured surface height data to calculate the fitting surface of the channel, after removal, realize the evaluation of the channel global form error. This paper also analyzing the channel surface placed skew factors that impact the global form error evaluation.For the channel surface ball bearing with micro indentation, by the white light scanning interference microscope measurement, using reduction iterative algorithm to gain the indentation depth distribution and maximum depth value. By the measurement of standard step surface height to verify the analysis, confirmed the feasibility and accuracy of the method.