(1) high load capacity bearings Model
The bearing selection should take into account the price of the bearing, or a higher load capacity but more expensive bearing or plain bearing and the other managed to extend its life. Ball bearings, bearings with high load capacity, for example, with a crown cylindrical roller bearings, spherical roller bearings with symmetrical rollers, strengthening type tapered roller bearings and ball bearings, ball groove bus modified or 70000CD series of bearings instead of deep groove (single row to the heart) ball bearings, these bearings have a high load capacity or improve stress distribution, or a large number of rolling elements may have higher fatigue life.
(2) Select the appropriate size of the bearing
To make the bearing size is chosen, must be accurately calculated or actual check of bearing load, speed and operating temperature. The maximum load on the bearing life, so load, although the most difficult measurement to the fullest extent possible measured accurately. When load measurement difficulties, can measure the actual power consumption of the motor, transmission line projections and less power loss along until closer to the actual bearing load calculated. Calculated or measured load is too large, the fatigue life of the bearings can expect is necessarily greater amplitude decreases, and must try to remedy the situation. If the installation site allows optional size bearing freshman profile; radial size is limited, should be selected in the case of wide bearing wide bearings; If you can not take advantage of the wider bearing, you can switch to the load carrying capacity higher bearings.
(3) Select a suitable bearing material
Bearing material to take into account the price, and had to use the vacuum smelting or ESR steel, must pay attention to the lubrication conditions perfect to exponentially increase the bearing fatigue life can be expected. Of course, the choice of the kind of high-quality steel made bearing the cost than selection higher load capacity of the bearing is much more expensive, but difficult to close the machine and extremely difficult to dismantle the bearing, or mine, tunnel operating machinery bearings maintenance extremely difficult occasions, sometimes still have to consider using.


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