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In order to improve the accuracy of EDA bearing and the actual installation, you cannot use the bearing deformation measurement methods and tools, with a cylindrical hole and the actual precision measurement of surface size deep groove ball bearings, the inner and outer diameters can measure all measured items and the measured data were analyzed, on the basis of the shaft and hole the size and position precision bearings. In the actual measurement results and the corresponding size and geometry of the shaft and the bearing seat hole, bearing should have the same temperature measured.
In order to ensure high actual results, shaft and bearing seat surface hole and EDA matching the roughness should be as small as possible, so that these measurements, should be in the cylindrical bearing hole, corresponding to the surface of the shaft and the bearing seat hole, are respectively assembled chamfering nearby, show that the two mark, so the maximum deviation in the actual the assembly direction, so that the maximum deviation of the matching error at the same direction, so that the assembly, can be partially offset by both parties.
(1) bearing raceway acoustic raceway and its control method is when the operation, the rolling element rolling and making a slippery continuous sound in the raceway surface, is a basic sound all rolling bearings are unique to happen. Deep groove ball bearings generally sound is rolling road sound with other sounds. Ball bearing raceway is irregular, frequencies above 1000Hz, the frequency rate does not change with the speed, but the overall sound pressure level increases with acceleration of the speed.
Raceway bearing large, the raceway acoustic sound pressure level decreases as the viscosity increased; and the rolling bearing EDA say small, the sound pressure level in the viscosity increases to about 20mm2/s above, by a reduction to increase. The bearing seat more rigid, rolling road sound of a sound pressure level is low. Such as the radial clearance is too small, rolling road sound of a sound pressure level and frequency with reduced radial clearance and increased dramatically.
But with the increase of rotational speed, the noise will disappear. On the rolling control method for impact sound: appropriate reduction of radial clearance, the use of reasonable structure and materials with cage bearings compliance.
(3) and a control method thereof bearings creak creak sound of metal friction bearing can happen on all occasions of harsh, mostly in the larger models grease lubricated bearings, the grease base oil on the performance degradation in more easily, almost does not occur under oil lubrication. (3) and a control method thereof bearings creak creak sound of metal friction bearing can happen on all occasions of harsh, mostly in the larger models grease lubricated bearings, the grease base oil on the performance degradation in more easily, almost does not occur under oil lubrication. In addition, more vulnerable in the winter, when under purely radial load, prone to big occasions in a radial clearance, and with different model sizes, easy to occur within a specific speed range, both continuous and intermittent.
The outer ring raceway special processing methods can prevent creak appears, when necessary, can use this kind of deep groove ball bearings, or appropriate EDA bearing radial clearance reduction, using high performance greases and improve the rigidity of bearing matching parts.
The outer ring raceway special processing methods can prevent creak appears, when necessary, can use this kind of deep groove ball bearings, or appropriate EDA bearing radial clearance reduction, using high performance greases and improve the rigidity of bearing matching parts. Two direction sign aims to compensate deviation, can be considered, even if both ends of the rotating support to improve the accuracy, but also has two bearing seat hole and both ends of the coaxial magazine part of error but.
Surface measures, such as sandblasting, diameter slightly larger than the accuracy of the first column plug hole plug, surface hardening, is helpful to improve the accuracy of. Surface measures, such as sandblasting, diameter slightly larger than the accuracy of the first column plug hole plug, surface hardening, is helpful to improve the accuracy of. Accuracy provided a lot of help to the stable operation of the machine, can reduce the occurrence of deep groove ball bearing fault machinery in the rate, so we should try to improve the accuracy when installing EDA bearings.