INA one-way bearing raceway noise solution

INA bearing raceway groove sound sound and its control method is when a one-way bearing operation, its rolling on the surface of the raceway and rolling body a line of continuous sound, is unique to occur in all rolling bearings of the basic sound. General bearing ring raceway is combined with other sounds. Bearing raceway is irregular, frequency above 1000 hz, its main frequency does not change with speed, but its total sound pressure level increases with speed to speed up. Raceway large bearings, the rolling sound of sound pressure level decrease with the increase of the viscosity; The raceway small INA bearings, the sound pressure level in the viscosity increases to about 20 was/s above, from decreased to increase somewhat. And the rigidity of the bearing, the greater the raceway of the lower the total sound pressure level. Such as radial clearance is too small, the total sound pressure level and race master frequency will increase sharply with the decrease of radial clearance. Method to control the sound of raceway are: choose low noise one-way bearing is bearing waviness is very small, that is, carefully select and use conditions. Race often affect the mechanical noise, reduce the raceway can reduce the mechanical noise. ( 1) Scars of sound and its control method of INA bearings rolling appearance if there is crack, indentation, or rust, like rivet rivet will attack the periodic vibration and noise, the cycle can be fixed but mostly, the corresponding relationship between rotating speed into the inevitable scars will continue in the channel, and scars on the ball, and the noise with the device and smooth and there is a premise of transformation. Device for this kind of noise control method are: no rap INA bearings, one-way bearing and shaft assembly after a load bearing seat when avoid bearing oblique; Inventory to avoid the bearing corrosion and transportation to avoid the impact of vibration; Using high viscosity of smooth and fat. ( 2) Dust acoustic rolling bearing with dust and other foreign body and its restraint, will attack the periodic vibration and so-called dust, the vibration and noise of intrusive, and with or without. Dust acoustic control measures are: to improve the bearing cleaning method, before the device will be INA bearings, shaft, hole and matching parts all stern qing shen clean; Clear smooth agent inside the foreign body; To improve the bearing seal; Avoid using data not pure or foreign bodies are embedded plastic stick to. ( 3) Lubricating elements make up the noise and its countermeasures of lubricant selection error, lack of lubricant or aging scleroma, can cause a one-way bearing vibration and noise, and the noise is not necessarily the rules. About this situation, as long as chooses appropriate smooth agent, adjust its smooth dose, extends the using life of smooth agent and reasonable change cycle.