NTN bearing installation and removal methods

Should be based on the structure of the NTN bearing, size, and cooperate with bearing parts of nature. Therefore, research in the design and installation of assembly department fully. You want to install according to the standard. The task of this project are as follows: the usual standards prior to installation in the NTN bearing, should use the appropriate measuring tools according to the provisions of the technical requirements on the design drawing check the shaft and hole and machining quality of parts ( Such as dimensional accuracy and shape accuracy and surface roughness, etc. ) 。 Shaft and hole assembly there such as bruising, burr, rust stain on the surface or solid particles ( Such as abrasive dust, sand, clay) Such as existence, not only can make the NTN bearing installation difficulties and make the installation position is not correct, and solid particles such as falling into a bearing inner grinding effect, when NTN bearing rotating grinding or bruising bearing surface of the work, so must be carefully checked before the installation, if found to have the above defects, should be revised. For example using oil file to remove burrs, bump touch mark, rusty spot, with fine abrasive cloth lighting, and like a clean solid particles, dirt, etc. Should be assembled with clean the surface of the gasoline, kerosene, toluene and xylene solution washing clean, with dry clean duster cloth, and then coated with a thin layer of lubricating oil, it can make the operation more convenient installation. NTN 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 put the axial load along with NTN bearing shell, when pressed on the bearing face cushion 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. When installing NTN bearing large can add a handle on the casing. NTN 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. NTN 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. The NTN bearing before heating installation, hot charging or separable bearing ring into the fuel tank or dedicated heater evenly heating to 80 ~ 100 ℃ ( Should not exceed 100 ℃) 。