TIMKEN bearing different sound analysis and resolution - bearing knowledge

': cause analysis: the retainer and the rolling body vibration, impact, no matter what types of grease are possible, torque, load or radial clearance under more prone to big. Solution: A, improve retainer essence; B, choose the TIMKEN bearing clearance small or the TIMKEN bearing exerted load; C, to reduce the torque load, reducing installation error; D, choose good fats. ': root cause analysis: the motor no-load running is similar as the buzzer sounds, and abnormal axial vibration motor, open or shut down' om-ing 'voices. Characteristics: multiple lubrication condition is bad, winter ends and ball TIMKEN 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 TIMKEN bearings with radial clearance is small; D, improve motor TIMKEN bearing rigidity; E so, strengthen the TIMKEN bearings. 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 TIMKEN bearing chassis paint dry after oil, the chemical composition of volatile out corrosion TIMKEN bearing end face and outside groove and the channel, the channel is corrosion occurred after the abnormal sound. Characteristics: being TIMKEN bearing surface rust more serious than the first. 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, improve motor TIMKEN bearing placed environmental temperature; E, with oil, fat cause less corrosion, silicone oil, mineral oil, the most easy cause; F, the varnished vacuum technology. 4, impurity sound: root cause analysis: caused by TIMKEN bearing or the purity of the oil, the abnormal sound of an irregular. Characteristics: I have no my voice, when big small without rules, are on high speed motor. Solution: A, choose good grease; B, to improve cleanness of greasing before; C, strengthening the TIMKEN bearing sealing performance; D, improve the purity of the installation environment. 5, high frequency, vibration sound 'man. 。 。 。 。 。 ': specific features: voice frequency change with TIMKEN bearing rotating speed, and the parts surface waviness is the main cause of the noise. Solution: A, improve the TIMKEN bearing raceway surface processing quality, reduce waviness amplitude; B, reduce the collision; C, fixed clearance and cooperate with the prestressing force, check the free end of TIMKEN bearings, shaft and TIMKEN and the precision of the bearing installation method. 6, warming: specific features: TIMKEN bearing after 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 is too large; C, the installation error; D, friction sealing equipment; E, TIMKEN bearings. The solution: A, choose the correct grease, appropriate dosage; B, correct clearance pre-tightening force and cooperate, check the workings of the free end TIMKEN bearing; C, the improvement of TIMKEN bearing precision and installation method; D, improvement of sealing form. 7, TIMKEN bearing feel bad: specific features: use hand TIMKEN bearing rotating rotor feel TIMKEN bearing impurity, stuck inside. Cause analysis: A, clearance is too large; B, with the inner diameter and axial improper; C, channel injury. The solution: A, smaller clearance as much as possible; B, the selection of tolerance zone; C, improve accuracy and reduce the damage to the channel, D, selection of grease.