(1) selection high load capacity import bearings model
Bearing type selection shall be taken into account  the price of bearing, or the ability to load higher but more expensive bearing, or use ordinary bearing and another try to prolong its life. The high load bearing capacity, for example take of the protruding degree of the cylindrical roller bearing, with symmetrical spherical roller bearing, tapered roller bearing and reinforced ball bearings, ball groove generatrix of the amended ball bearings, or with 70000 CD series of bearing for deep groove (to a single heart) ball bearings, these have high load capacity for improving the bearing or stress distribution, or because of the number of the roller more and may have a higher fatigue life.
(2) import bearings to choose the appropriate size
To make the bearing size appropriate, must be precise or check the work load bearing the actual, rotational speed and operating temperature. The load bearing life for maximum impact, so although the hardest load measurement but also wants as far as possible measure accurately. When load measurement have difficulty, can be used to measure the actual motor power consumption, according to the transmission line and the deduction process to calculate the power loss, until relatively close to the real calculated the bearing load. Calculation or the measurement of load is too large, bearing can expect the fatigue life of the inevitable with more amplitude decreases, and must be tried to remedy. If the installation position allows, can choose a big size of bearing; If the radial dimensions have limited in has a broader bearing rappel/abseil stations should be under the condition of the wider bearing; If can't use a wider bearing, can convert load bearing capacity of high bearing.
(3) choose appropriate import bearing material
Choose bearing material also must take care the price, and when have to use the vacuum smelting slag or electricity remelting steel, want to note must make lubrication condition, can several-fold bearing can expect fatigue life. Of course, choose this kind of high quality steel bearing the cost of the ability of the higher than choose load bearing much more expensive, but for in a machine out-of-reach extremely hard and installation of bearing, or mine, in a tunnel, the bearing mechanical operation, maintenance is extremely difficult for the occasion, and sometimes still must consider to use.



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