Oil pollution caused by the INA bearing ring - bearing knowledge processing method
Because of frequent use INA bearing, the oil can reduce the service life of bearing, how can we clear the oil on the bearing?
Here to teach you a way to easily clear the oil on the bearing.
Soft dry oil or rust cream hardening bearing, should dip in 100 ℃ ~ 200 ℃ hot oil, clamp bearing with forceps, brush with wool clean oil bearing.
Soft dry oil or rust creams are heated to 100 ℃ ~ 200 ℃, melting, easily washed out of the bearing gap.
Sometimes as long as bearing repeatedly shaking in the oil.
The oil into crevices from.
In cleaning the centripetal spherical bearing, INA bearing should be the ball, pearl frame transverse transfer from the outer ring, internal ring into hot oil, again after a short cylindrical roller bearing when cleaning roller, beads, also should be the inner ring and outer ring off.
INA bearing raceway groove sound sound and its control method is when bearing is running, the roller rolling on the surface of the raceway and 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.
Ball 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 big INA bearings, the rolling sound of sound pressure level decrease with the increase of the viscosity;
The raceway small 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.
Control of raceway acoustic methods are: using low noise 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.
Impact of the rolling element and its control method for larger models of ball bearings or cylindrical roller bearings under pure radial load speed, due to centrifugal force is lesser, roller in the rolling body will impact the load area or race and making noises.
But with the increase of rotational speed, the noise will disappear.
Control method of rolling body impact sound: decrease the radial clearance, materials for use with reasonable structure and flexibility of the bearing cage.
INA bearing of rolling mill and its control method for roll is cylindrical roller bearing in the harsh metal can occur in all occasions, mostly happens in large type bearing grease lubrication, and in the base oil performance degradation occurred more often in grease, almost does not occur when oil lubrication.
In addition, more easily occur during the winter, when under pure radial load, the radial clearance prone to big occasions, and with different size, easy to happen in a certain speed range, both continuous and intermittent.
External ring raceway take special processing method can prevent the occurrence of roll ring, can choose this kind of bearing, if necessary or appropriate to reduce bearing radial clearance, the use of high performance grease and improve to suit the bearing parts of rigidity.