The use of SKF bearing environment and installation and dismantling

Environment: the use of a, SKF bearing according to the area of use and conditions of use and environmental conditions choose size, precision, with appropriate SKF bearing is the prerequisite of SKF bearing life and reliability. 1, use parts: tapered roller SKF bearing is suitable for predominantly radial load under the combination of radial and axial load, usually in pairs using two sets of SKF bearing, mainly should be in the car before and after the wheel hub, active transmission parts, such as bevel gear, differential, reducer. 2, allows speed: under the correct installation, lubrication good environment, allowing for SKF bearing limit speed of 0. 3 - 0. 5 times. Generally under normal circumstances, with 0. 2 times the limit speed for the most appropriate. 3, allows tilt Angle: tapered roller SKF bearing generally are not allowed to have tilted axis relative to the shell hole, if there are any tilt, no more than 2 '. 4, allow temperature: under normal load, and lubricant has a high temperature resistant performance, and abundant lubrication conditions, general SKF bearing in - are allowed 30℃- Work under the temperature 150 ℃. Second, the installation of SKF bearing: SKF bearing must be installed in a dry, clean environment conditions. Before installation should carefully check the shaft and the shell surface, convex shoulder of end face and groove and the connection surface machining quality. All matching connection surface must be carefully cleaned and remove burrs, rough surface must remove all sand castings. SKF bearing should be taken before installation with petrol or kerosene wash clean, dry after use, and to ensure good lubrication, SKF bearing grease lubrication, commonly used oil lubrication may be adopted. Using grease lubrication, should choose without impurities, antioxidant, antirust, superior performance, such as extreme pressure grease. Grease filling quantity for SKF bearing and bearing housing - 30% of the volume 60%, unfavorable and overmuch. With sealing structure of double row tapered roller bearing and water pump shaft bearing has good filling grease, users can directly use, shall not be clean. SKF bearing installation, it must be in the ring width on the circumference of a circle of equal pressure, to press the ring into, can not use ð ¨ +  face top tools direct percussion SKF bearing, so as not to damage the SKF In the case of a small amount of interference, but at room temperature with the sleeve pin SKF bearing ring end face, with a ð ¨ +  head banging on sleeve, through the sleeve ring is balanced If large quantities of installation, can use hydraulic press. Fashionable, should guarantee the outer end face and the shell shoulder end face, inner ring end face and the shaft shoulder end face pressure, there is no gap. When large amounts of interference, can use oil bath heating or inductor heating method to install the SKF bearing, heating temperature range of 80 ℃ - More than 120 ℃, 100 ℃, the highest can't. At the same time, the application of nut tighten SKF bearing, or other appropriate method to prevent the SKF bearing width after cooling contraction and make the clearance between the ring and the shaft shoulder. Single row tapered roller bearing installed last should undertake clearance adjustment. Clearance value should be used according to different conditions and cooperate with the amount of interference and specify the size. When necessary, shall be tested to determine. Double row tapered roller bearing and water pump shaft bearing in have been adjusted when delivery from factory clearance, installation time don't have to adjust. SKF bearing test should rotate after installation, first used in the axis of rotation or SKF bearing box, without exception, with a power of no load, low speed, then according to the condition of operation gradually increase the speed and load, and detection noise, vibration and temperature rise, found abnormal, should stop and check. Running test normal rear deliverables. Three, the removal of SKF bearing: SKF bearing removed after plans to continue to use, should choose the proper removal tool. Remove the interference fit ring, can only add tension on the ring, will never allow through transfer roller disassembly force, rolling element and raceway will be crushed.