Ordinary deep groove ball bearings replace cryogenic -60C grease. Can it work in an environment of minus 45 degrees? Does expansion and contraction affect the bearing greatly?
If the temperature range of lubricating grease is to minus 60 DEG C so the normal use of low temperature conversion rate is -45 degrees Celsius but depends on the actual conditions of your time and thermal design of equipment should have been taken into account only from fat considerations do not have to worry about
I am not worried about grease, and I agree with the upstairs, you ordinary bearings at minus 45 degrees, the use of bearings should be very fragile, so it is easy to bad. Like at the south pole, steel does not need to be broken with great force
Online summary of the next answer to you.At low temperatures, the viscosity of the lubricant is even frozen, and the system work load increases, resulting in poor lubrication and accelerated bearing damageObjects have the nature of expansion and contraction, bearing, bearing and the like.Material shrinkage is different, so that the structure deformation, stuck.One end of the shaft is mounted with a pair of cylindrical bearings positioned as a shaft,The axial movement of the axle is restrained, and the other end of the shaft is supported by rolling bearings only to the radial force,In the axial direction, it varies with temperature and moves axially in a certain range. Such a structure is better.Low temperature greasePhysical condition: semi fluid color: Brown odor: fat oilSolubility: soluble in most organic solvents, water soluble: insolubleUniway LIX 22 PA grease is a kind of grease based on poly alpha olefin oil and compounded with lithium soap as thickener.The grease has a wide temperature range, high drop point, high performance oxidation inhibitor, low base oil viscosity and low temperature resistance.
