The installation of NSK bearings with method

The stand or fall of NSK bearings to install it or not, will influence the precision of NSK bearings, life and performance. Therefore, please fully study the installation of NSK bearings, which shall be carried out in accordance with the operating standards including the following items, please NSK bearing installation. 1, clean NSK bearings and related parts, ( NSK bearings has grease lubrication and oil seal or dust cover on both sides, NSK bearing seal without cleaning before installation. ) 2, check the size and finishing condition of related parts installed 3, method of NSK bearings NSK bearings shall be according to the structure, size and cooperate with properties of NSK bearing parts, pressure should be directly in the tight fit on the ring width, shall not be passed on roller pressure, NSK bearings installed generally adopt the following methods: a. NSK bearing inner ring and the axial force fit tight fit, NSK bearing outer ring and the hole is a loose fit, NSK bearings available press will first be pressed on the shaft, then axis along with NSK bearing NSK bearing hole loading, when pressed on the NSK bearing inner ring end face, cushion the assembling casing made of a soft metal materials ( Copper or mild steel) 。 NSK bearing hole tight fit, NSK bearing outer ring and inner ring and the shaft is a loose fit, NSK bearing NSK bearings can be pressed into the first hole, then assembling casing diameter should be slightly less than the diameter of a hole. If NSK bearing ring with the shaft and hole is a tight fit, install indoor ring and outer ring to pressure into the shaft and hole, at the same time assembling casing structure should be able to at the same time so NSK bearing inner ring and outer ring end face. b。 Cooperate with NSK bearing NSK bearings or by heating, heating using thermal expansion will fit into a loose fit installation method. Installation method is a kind of common and energy saving. This method is suitable for interference quantity larger NSK bearing installation, the NSK bearings before hot charging or separable type NSK bearing ring into the fuel tank 80 - uniform heat 100 ℃, and then loaded on the shaft, as soon as possible out of the oil to prevent inner ring after cooling end face and shoulder joint is not tight, NSK bearings after cooling can be axial tighten again. NSK bearing NSK bearing outer ring and light metal tight fit, adopt NSK bearing heating method of hot charging, can avoid the mating surface scratch. NSK bearings with oil tank heating, should be at a certain distance from the bottom of a mesh, or hanging hooks in the NSK bearings, NSK bearings can not on the bottom, in case of heavy impurities into the NSK bearings or uneven heating, fuel tank must have a thermometer, strictly control the oil temperature shall not exceed 100 ℃, in order to prevent the tempering effect, reduce the hardness of the ring.