From the point of view of long life, the choice of imported bearings is undoubtedly very important.Today I'm going to tell you three choices to follow.
(1) Select the imported bearing type with high load capacity
Bearing selection should take into account the price of bearing, or use a higher load capacity but more expensive bearing, or use ordinary bearing and try to extend its life.
USES a high load capacity of bearing, such as crown of cylindrical roller bearing, spherical roller bearing with symmetrical roller, reinforced taper roller bearing and ball bearing, ball groove busbar revised ball bearings, or replace with 70000 CD series bearing deep groove single-row radial ball bearing, these have high load capacity of bearing or improve the stress distribution state, or because of the more the number of rolling element may have higher fatigue life.
(2) Select the appropriate import bearing size
To make the bearing size suitable, it is necessary to accurately calculate or actually check the bearing's working load, speed and operating temperature.
Load has the greatest impact on bearing life, so it is the most difficult to measure but as accurate as possible.When it is difficult to measure the load, the actual power consumed by the motor can be measured, and the power loss along the transmission line can be calculated and deducted until the bearing load is closer to the actual load is calculated.If the calculated or measured load is too large, the expected fatigue life of the bearing must be reduced by a larger range and must be remedied.If the mounting position permits, the bearing with large size is optional.If the radial dimension is limited, the wider bearing should be selected in the case of wider bearing;If a wider bearing is not available, use a bearing with a higher load capacity.
(3) Select appropriate imported bearing materials
The choice of bearing material should also take into account its price, and when it has to use vacuum smelting or electroslag remelting steel, it should pay attention to the lubrication condition must be perfect, in order to increase the bearing's expected fatigue life many times.Of course, the cost of bearing made of this kind of high-quality steel is much more expensive than that of bearing with higher load capacity, but it is difficult to approach and very difficult to assemble and disassemble the bearing in the machine, or the bearing used in the operation machinery in the mine, tunnel, overhaul is very difficult occasion, sometimes still must consider to use
