FAG high-precision bearing speed and cooperation clarification

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FAG high-precision bearing speed and cooperation clarification

Source: Bearing network time: 2013-01-02
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FAG ultra-fine bearings can be used at the highest speed. If the grease is smooth, the speed index n 0?dm can reach 2.00?106 mm/min; if the oil is smooth, it can reach 3. 0 0?106 mm/min or even Higher. High centrifugal force will occur at such a high speed; the effect will cause it to swell on the inner ring. The inner ring expansion will cause its inner diameter to increase; affect the cooperation between the inner ring and the journal.
The results that can be achieved by this:
• Wear and corrosion • The inner ring slips on the journal • The journal loses the guiding effect and is easy to oscillate • It can be misaligned and the bearing function can be reduced.
These conditions can be prevented by the cooperation of the bearing and the journal. The required interference can be calculated from Table 11 or by the BEARINX® program. The value obtained by this method; still leave 1 μm at the maximum speed. Surplus.
The interference is added to the preload; in particular, the bearing is adjusted by rigidity. This will lead to the addition of heat in the bearing equipment; affecting the speed. The preload thus added must be compensated by the appropriate method. If fw 0?n2 1 2. The best way to consult the Schafer Group Industrial Use Department.
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