TIMKEN bearings choice whether reasonable criteria

1 rolling bearing with simple and convenient to be able to make the bearing installation and disassembly, as far as possible to save time, save work, three provinces spending; 2 in order to reduce the TIMKEN bearing ring deformation degree, and can give full play to the carrying capacity of the bearing, bearing ring had better have good support and uniform force; Three axial position, must adapt to the ability of swimming in a certain range, so the free end bearing must be able to with the shaft and TIMKEN adapt to changing the length of the bearing hole; 4 and the ring in its surface can't slide along the tangent direction, in order to avoid damage mating surface; Grease is used for lubrication bearing, is the more the better, of course, it's not. Add too much grease in the bearing is unnecessary, it will increase the friction, temperature rise. Too little and fatliquoring, repair the oil film of grease is not strong, can make the bearing lubrication condition worse. Therefore, determination of TIMKEN bearing grease suitable loading quantity is very important. Insert ball bearing unit in general grease filling quantity refer to the following principles: ( 1) The viscosity of the lubricating oil is the basic factor of forming oil film. In the speed, load and temperature is not high, under the conditions of use of viscosity lubricating oil. In heavy load, low speed and higher temperature conditions, selection of high viscosity lubricating oil or add lubricating oil extreme pressure antiwear agent. At low load, high speed and low temperature conditions, choose low viscosity lubricating oil. ( 2) In the use of wide range of temperature and light load and high speed, and there are other special requirements, under the condition of choosing synthetic lubricants. ( 3) In internal combustion engine oil, for example, choose suitable viscosity and high viscosity index, make the product not only has enough high temperature viscosity to ensure lubrication and seal in the operation of the engine, but also at low temperature are small enough to ensure that the low temperature viscosity startup performance. Viscosity of choice is usually according to the temperature conditions, should also consider the load level, degree of speed size or engine wear and other factors.