Angular contact ball bearing installation process must pay attention to the problem

Angular contact ball bearing belongs to the precision parts, so when use requires a fairly cautious attitude, so is the use of the high performance bearing, if use undeserved, also cannot achieve the expected performance effect, and easy to make the bearing damage. So, the use of the bearing should be paid attention to the following: however, in some special operating conditions, angular contact ball bearings can get more than the life of the traditional computing, especially in the case of light load. These special operating conditions is, when the rolling surface ( Track and rolling piece) Can be separated by a lubricating oil film effectively and the surface of the limit of pollutants may cause damage. In fact, under ideal conditions, the so-called permanent bearing life is possible. Grease lubrication of filling grease in the seal type bearing in advance sealing way, and in the shell internal filling amount of grease, every once in a while to supplement or replace the packing way for fat. Moreover, there are many need lubrication of mechanical angular contact ball bearing, also USES the pipe connection to the lubrication for lipid concentrate way. Grease lubrication can do a grease filling after long time don't need to be added, and the structure of the sealing device is also relatively simple, so widely used. Oil lubrication is relatively simple. Angular contact ball bearing installation and removal methods, should be based on the structure of the bearing, size, and cooperate with bearing parts of nature. Installation, remove the pressure should be directly in the tight fit archives circle on the face, not through the transfer roller pressure, because it will cause indentation in the bearing working surface, affect the normal work of the bearing, may even make bearing damage. Bearing cage, sealing ring, dust cover and so on parts is easy to deformation, install or remove the bearing pressure added on these parts. ( 1) Bearing inner ring and the shaft is a tight fit, outer ring and shell as a loose fit, can press the bearing pressure equipment on the bearing first, then, together with the bearing axis in shell, when pressed on the transverse angular contact ball bearing pad a soft metal materials assembling casing ( Copper or soft steel tube) 。 Assembling casing inside diameter should be slightly larger than the diameter of a journal, outside diameter should be less than the rim diameter of bearing inside diameter, to avoid pressure in keeping the frame. Large Numbers of installing a bearing can add a handle on the casing. Angular contact ball bearing installation to make the bearing hole and the shaft centerline. Bearing relative axial skewed installation difficulties not only, and will cause the indentation, shaft bending, and even can make the bearing inner ring fracture. In the absence or cannot use press, assembling casing and small hammer to install the bearing can be used. Hammer force should be even to the end of the bearing ring on the circumference of a circle, therefore assembling casing under the hammer face should be made into spherical. ( 2) Bearing outer ring and shell holes for tight fit, inner ring and the shaft for a loose fit, the bearing can be pressed into the housing first, then assembling casing diameter should be slightly less than the diameter of the shell hole. ( 3) Bearing inner ring and the shaft, the outer ring and shell holes are tight fit, assembling casing can end should be made at the same time compression bearing inner and outer ring width of the circle, or with a disc and assembling casing, make the pressure at the same time to the inside and outside the circle, the bearing pressure into the shaft and housing. This installation method is particularly suited to automatically adjust heart to the heart of the spherical bearing installation. ( 4) Installed heating, angular contact ball bearing the force required for bearing size and cooperate with related to the size of the amount of interference, the interference to the large amount of medium and large bearing commonly used the method of hot charging. The bearing before hot charging or separable bearing ring into the fuel tank or dedicated heater evenly heating to 80 ~ 100 ℃ ( Should not exceed 100 ℃) 。 The skilled operation skills are needed for hot charging bearing. When the bearing after removed from the heating or heater in the tank, shall be immediately with a clean cloth ( Can't use cotton yarn) Wipe grease stain on the surface of the bearing and attachments, and then put forward, on the surface of the bearing in an operation to resist the position of the shoulder. Should always push tight in the cooling process, or with a small hammer by assembling casing tap bearing on tight. When installation should be slightly twisted bearing, in case the installation tilt or jammed. Angular contact ball bearing outer ring and shell holes for the tight fit can also take shell after heating load bearing. Especially in light metal manufacturing bearing under the condition of the tight fit, may be because of the pressure bearing outer ring into the damage its surface, the bearing should be heated.