NSK bearings installation should pay attention to

NSK bearing NSK bearing installation: the installation must be 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. NSK bearings should be taken before installation with petrol or kerosene wash clean, dry after use, and to ensure good lubrication, NSK bearings with grease lubrication and oil lubrication may be adopted. Using grease lubrication, should choose without impurities, antioxidant, antirust, superior performance, such as extreme pressure grease. NSK bearing NSK bearing box and amount of grease filling volume of 30% 60%, unfavorable and overmuch. With sealing structure of NSK bearings and double row circular cone roller pump shaft NSK bearing has good filling grease, users can be used directly, not to wash again. NSK bearings when installation, must equal pressure on the circumference of the ring width, to press the ring into, can not use ð ¨ +  NSK bearings top tools directly on face, in order to avoid damage to NSK In the case of a small amount of interference, but at room temperature with NSK bearing sleeve pin ring width, 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 sensors to install NSK bearing heating method, the heating temperature range of 80 ℃ - More than 120 ℃, 100 ℃, the highest can't. At the same time, nut or other appropriate method is applied to tighten NSK bearings, NSK bearing width after cooling to prevent shrinkage and produce clearance between the ring and the shaft shoulder NSK bearing installed last single row tapered roller clearance adjustment should be done. 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. NSK bearings and double row circular cone roller pump shaft NSK bearings even in have been adjusted when delivery from factory clearance, don't need to adjust when installation. NSK bearings after installation should rotate test, first used in the axis of rotation or NSK bearing box, without exception, with a power with 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. The removal of 2, NSK bearings, NSK bearings 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. Three, the use environment of NSK bearings: according to the area of use and conditions of use and environmental conditions choose size, precision, NSK bearings with appropriate is the prerequisite of NSK bearing life and reliability. 1, use parts: NSK bearings taper roller is suitable for predominantly radial load under the combination of radial and axial load, usually in two sets of NSK bearings pairing is used, should be mainly in car wheel hub, before and after active transmission parts, such as bevel gear, differential, reducer. 2, allowed speed: under the correct installation, lubrication good environment, allowing for NSK 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: NSK bearings taper roller 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 NSK bearings in - are allowed 30℃- Work under the temperature 150 ℃.