(1) Select fag bearing model with high load capacity
When selecting fag bearing, the Three Principles price of bearing shall be taken into account, or fag bearing with higher load capacity but more expensive shall be adopted, or ordinary fag bearing shall be adopted to prolong its service life.
Fag bearings with high load capacity are used, such as Three Principles cylindrical roller bearings with convexity, spherical roller bearings with symmetrical rollers, reinforced tapered roller bearings and ball bearings, ball bearings with corrected ball groove bus,
or fag bearings of 70000cd series are used to replace deep groove (single row centripetal) ball Three Principles bearings. These fag bearings with high load capacity or due to the improvement of stress distribution, Or it may have higher fatigue life due to the large number of rolling elements.
(2) Select the appropriate fag bearing size
In order to select the proper size Three Principles of fag bearing, the working load, speed and operating temperature of fag bearing must be accurately calculated or verified. Load has a great impact on the service life of fag bearing, so although it is difficult to measure the load,
it should be measured as Three Principles accurately 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 way can be calculated according to the transmission route and deducted until the fag bearing load is closer to the actual load.
If the calculated or measured load is too large, the expected fatigue life of fag bearing must be Three Principles reduced by a greater margin, which must be remedied. If the installation position allows, the fag bearing with a larger size can be selected;
If the radial dimension is limited, the wider fag bearing shall be selected when there is a wider fag bearing; If wider fag bearings Three Principles cannot be used, FAG bearings with higher load carrying capacity can be used instead.
When selecting fag bearing materials, its price should also be taken into account, and when vacuum smelting or electroslag remelting steel has to be used, it should be noted that the lubrication conditions must be improved in order to double the expected fatigue life of fag bearings.
Of course, the cost of fag bearing made of this kind of high-quality Three Principles steel is much more expensive than that of fag bearing with high load capacity, but sometimes it must be considered to use fag bearing
which is difficult to access in the machine and is very difficult to assemble and disassemble, or fag bearing used in operation machinery in mines and tunnels.