High speed motor bearing abnormal sound and common solution

High speed motor bearing abnormal sound and common solution 1, retainer ring 'hey, hey. 。 。 。 。 。 Cause analysis: 'produced by the vibration and impact of retainer and rolling element, can happen, no matter what types of grease are under torque, load or radial clearance when playing easier to produce. The solution: A, to improve the precision of the retainer; B, choose the bearing clearance small or the exerted load bearing; C, to reduce the torque load, reducing installation error; D, choose good fats. 2, continuous hum hum. 。 。 。 。 。 'Root cause analysis: the motor no-load running like buzzer sounds, and abnormal axial vibration motor, open or shut down' om-ing 'voices. Characteristics: more performance for lubrication condition is bad, and in the winter of ball bearing motor, main shaft is self-aligning performance is bad, under the influence of the axial vibration of an unstable vibration. The solution: A, use the grease lubrication good performance; B, preload, reducing installation error; C, choose the bearings with radial clearance is small; D, improving motor bearing rigidity; E, strengthen bearing so. Note: in the first five have the effect of fundamental improvement, using small groove curvature, 02 01 big groove curvature. 3, rust paint cause analysis: due to motor bearing chassis paint dry after oil, the chemical composition of volatile out corrosion of end face and outside groove bearings and channel, the channel is corrosion occurred after the abnormal sound. Characteristics: bearing surface rust corrosion than the first one side is more serious. Solution: A, the rotor, chassis, dry or drying after assembly; B, to reduce the motor temperature; C, choose to adapt to the paint model; D, the improvement of motor bearing placed environmental temperature; E, with oil, grease caused less corrosion, silicone oil, mineral oil, the most easily cause corrosion; F, the varnished vacuum technology. 4, impurities cause analysis: caused by bearing or the purity of the oil, the abnormal sound of an irregular. Sometimes there is no specific characteristics: sound, big small without rules, are on high speed motor. Solution: A, choose good grease; B, to improve cleanness of greasing before; C, strengthening the bearing sealing performance; D, improve the purity of the installation environment. 5, high frequency, vibration sound 'man. 。 。 。 。 。 'Specific characteristics: voice frequency change with bearing rotating speed, and the parts surface waviness is the main cause of the noise. The solution: A, improve the quality of bearing raceway surface processing, reduce waviness amplitude; B, reduce the collision; C, fixed clearance and cooperate with the prestressing force, check the free end bearing operation, improve the precision of the shaft and bearing installation method. 6, temperature rising characteristics: after bearing operation, temperature is beyond the scope of requirements. Cause analysis: A, too much grease, lubricant resistance increased; B, the clearance is too small to cause the internal load increases; C, the installation error; D, the friction of the sealing device; E, bearing the crawl. The solution: A, choose the correct grease, appropriate dosage; B, correct clearance pre-tightening force and cooperate, check the workings of the free end bearing; C, improve the accuracy of bearing seat and installation method; D, improvement of sealing form. Bearing on production of 2 mm diameter 30 ~ 40 mm 30 small small-sized bearing, has high precision, small vibration, low noise, high performance, high speed, long life and other excellent features. Widely used in household appliances, electric tools, small-sized electric machinery, fitness equipment, office automation equipment, medical equipment, instrumentation, internal combustion engines, construction machinery, railway vehicle, loading and unloading handling machinery, agricultural machinery, all kinds of industrial machinery, etc. Buy miniature bearings, motor bearings, deep groove ball bearing, please find bearing. Jiaxing bearing co. , LTD. , tel: 0755 - Fax: 814471962708197913612805458-0755 27092086 www。 kaleso。 com info@kaleso. Com on a: rolling bearing fault phenomenon and the reason analysis of next up: the methods of improving the precision for installation precision bearing -