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Bearing modulus is a modulus used in journal bearing design. It is a dimensionless number. ==Formula== Bearing Modulus (C) is C = (Zn/p) where * Z = oil viscosity * n = speed of rotation (rpm) * p = bearing pressure For any given bearing, there is a value for indicated by C, for which the coefficient of friction is at a minimum. The bearing should not be operated at this value of bearing modulus, since a slight decrease in speed or a slight increase in pressure will make the part of a shaft or axle that rests on bearings operate in partial lubrication state resulting in high friction, heating and wear. To prevent this, the average value of Bearing modulus should be * Zn/p >= 3C or for large fluctuations and heavy impact loads * Zn/p = 15C (approx) 抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Bearing modulus」の詳細全文を読む スポンサード リンク
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