In what circumstances, lubricant viscosity should be smaller?
It's not a temperature problem. You should use a little oilThe simplest way is to use the fire under the oil, if it will change the water, this kind of lubricating oil will not have no, you can use800 is usually OK
In low load, high speed and low temperature conditions, choose low viscosity lubricating oil. In heavy load, low speed and high temperature conditions, the choice of high viscosity lubricating oil or extreme pressure and anti-wear additives lubricants.Lubricating oil is the main lubricant. The main physical performance index of lubricating oil is viscosity, which indicates the internal friction properties of liquid flow, and the greater the viscosity, the worse its flowability. Another physical property of lubricating oil is oiliness, which represents the adsorption ability of lubricating oil on the metal surface. The greater the oil, the stronger the metal adsorption capacity, the more likely the oil film to form. The selection of lubricating oil should take into account the bearing capacity, journal speed, lubrication mode, surface roughness of sliding bearing, and other factors.General principles are as follows:1, in the light load conditions, in order to reduce friction power consumption, low viscosity lubricants can be chosen;2. under heavy load or impact loading conditions, oily and big viscosity lubricating oil should be used to form a stable lubricating film;3. static or dynamic sliding bearings can choose a small viscosity of the lubricating oil; 4. rough surface or without running surface should choose high viscosity lubricants.
