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How to install high-speed bearings

Installation and adjustment with high-speed bearing:
    1. The co-ordination and speed bearing clearance due to high-speed precision bearings bearing according to both requirements, but also by the high temperature bearing housing requirements, so when considering their mating and clearance, to take into account the following points:
    (1) changes in the size and hardness changes in temperature rose at a high temperature;
    Force system changes (2) high speed and centrifugal force caused by the change in shape.
    In short, high-speed, high temperature conditions, and with clearance from the choice should strive to maintain the accuracy and performance of the bearing, which is difficult.
    In order to ensure that small deformation roller bearings after installation ball bearing, interference interference fit can not be made too large, and the heat and centrifugal force at high speed under high temperature expansion, or offset with the normal to the surface pressure. Or the mating surface relaxation, and therefore the amount of interference must be carefully calculated in consideration of the above two factors under the premise of constant speed at room temperature under an effective amount of interference for high-speed bearings may be invalid.
    If the result of this conflict is too large (usually only in the ultra-high speed only in this case), but to take measures to double the lubrication ring lubrication method and the static pressure lubrication and use, and this program has the potential to break through the bearing dmn value 3 million mark.
    Thermal expansion at high temperatures, or offset with the normal to the surface pressure.rod end bearing Or the mating surface relaxation, and therefore the amount of interference must be carefully calculated in consideration of the above two factors under the premise of constant speed at room temperature under an effective amount of interference for high-speed bearings may be invalid.
    If the result of this conflict is too large (usually only in the ultra-high speed only in this case), but to take measures to double the lubrication ring lubrication method and the static pressure lubrication and use, and this program has the potential to break through the bearing dmn value 3 million mark.
    In considering the high speed bearing clearance only to consider the above factors, but also to consider the thermal elongation of the shaft on clearance, bearing requirements in working condition, that is the best clearance at operating temperature, which species clearance is included, the exact center of the outer ball groove lower state formation. Since the high-speed bearings and strive to reduce sliding friction and internal, best not to use the inner and outer rings relative axial displacement method to adjust the ball bearing clearance.
    In considering the amount of interference with the bearing clearance and to note that the material becomes soft and easily deformed features, as well as many from the room temperature to high temperature changes caused by the possibility of some permanent deformation at high temperatures.

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