Standard test method for tapered roller bearing components viscosity GB / T 265, by gravity calibrated glass capillary time, a certain volume of liquid flow. Capillary viscometer time and product temperature constant stream kinematic viscosity of the liquid. Corresponding standard method for determining the kinematic viscosity on foreign oil mainly the United States.
Friction material flow within the measuring range of the so-called viscosity to prevent contact between the moving parts to wear, tapered roller bearings must have sufficient viscosity of the oil, the viscosity decreases with increasing temperature. Tapered roller bearing lubricant viscosity is a quality assessment of important physical and chemical properties, production, transport and use, are of great importance.
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