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IKO rolling bearing selection of the necessary tips

1, with low noise requirements of the rolling bearings are: in the production of standard bearings in our country, some single row radial ball bearings and short cylindrical roller bearings have a low noise variety of motor bearings. The ball bearing from the diameter Phi 2.5mm to 60mm has several varieties with Z1, Z2 and Z3 three suffixes, which correspond to three different low-noise requirements, and roller bearings N309 type to N322 total of eight models also manufactured according to the low noise standard varieties. These IKO bearings can be applied to other machines with low noise requirements, and the price is cheap, such as the type and size can meet the requirements, as far as possible the use of these two types of low noise bearings.

2, the use of relatively small noise IKO bearings: when you can not use the above two types of low noise bearings, noise can be relatively small bearing. Specific comparison is based on the following:

1) the ball bearing noise is lower than the roller bearing and relatively less sliding bearing friction noise than the relative sliding more bearing low; multiple ball, thick outer ring, the noise is small;

2) using the noise of the solid cage bearing is relatively lower than that of the bearing using the punch holder;

3) the use of plastic cage bearing noise than the use of the above two kinds of cage bearings are low;

4) high precision bearings, in particular, the rolling elements with higher precision bearings, the noise is less than the low noise bearing noise;

5) smaller bearing noise than large bearing noise is relatively small.

Vibration on the IKO bearing damage can be said to be quite sensitive, peeling, indentation, corrosion, crack, wear and so on will be reflected in the bearing vibration measurement. Therefore, by using special IKO bearing vibration measurement device (frequency analyzer, etc.) can be measured by the size of the vibration, through the frequency points can not be inferred from the specific circumstances of the specific circumstances. The measured values are different due to the use of the bearing or sensor installation location, and therefore need to determine the criteria for the analysis and comparison of the measured values of each machine in advance.

Scar sound and its control method of rolling bearing rolling surface such as cracks and indentation or corrosion, occurs as riveting as periodic vibration and noise, the cycle may be fixed but mostly and speed into a certain relationship, the scar in the channel will occur continuously, scars on the ball will appear and disappear from time to time and the noise with installation and lubrication condition and some changes. This kind of noise control methods are: installation of percussion IKO bearings, bearing and shaft assembly again into the bearing seat to prevent bearing loading ramp; inventory to prevent the IKO bearing corrosion and transport from shock and vibration; use high viscosity lubricating grease.


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