NTN tapered roller bearing adjustment rotating precision of smooth enjoy on a regular basis

NTN bearing device in the host after the end of, such as measurement of tapered roller bearing spindle radial runout, can be found that the each measured value of a certain change; Stop continuous measurement, can be found that after a certain number of revolution, this change will appear again and again. Weigh the level of the change of index for cyclic rotation accuracy, change approximately turn over and over again to present the required on behalf of the rotating precision of the loop 'cycle', the value of the amplitude changed in quasi cycle, is the cycle rotation accuracy is poor. 1, best to smooth smooth smooth NTN bearing grease is during the plan of equipment downtime, and periodically stop supplement, at the same time, the old oil clean up empty or via the drain the old oil. Before attend the novel grease injection nozzle should be wiped clean. If the bearing box without injection nozzle, should open bearing box cover or end cover, in order to remove the old oil, after the liquidation, novel complement the same type of grease. 2, smooth oil smooth smooth oil regularly check the oil level and oil, ordinary conditions, normal oil level should be equipment oil level Windows or mark a third - Two-thirds of the range. Oil compensating way for oil cup, the oil level appeared only represent to fill oil, and oil bearing box is to satisfy the request of operation, oil cup CPC a lower than a quarter of its total volume can be thought to fill oil. To check and fill oil, remove and smooth a small amount of oil as a sample and novel smooth oil stop match, a unit of talent can be thought to stop oil testing, to ensure the oil qualified. If sample seemingly cloud-like, so may be mixed with water as a result, namely we often say that oil emulsification, smooth oil should be changed at this time. Before the fixed end bearing on the shaft device: tapered roller bearing with a clean to clean kerosene to stop the thorough cleaning, about fat is smooth, smooth to contain 3% ~ 5% fat organic solvent degreasing cleaning before injection of NTN bearing, oil gun to quantitative smooth again fat within the bearing ( Accounts for 10% ~ 15%) of the bearing space volume ； Heat bearing the heat up 20 ~ 30 ℃, using hydraulic press the bearing into shaft end; Will set casing pressure on the shaft and with appropriate pressure against bearing face makes its axial positioning; The lace will spring balance volume on the bearing outer ring, rule by measurement of starting torque check is the preload can have substantial changes ( Even tapered roller bearing is correct, but due to cooperate or frame deformation, load also has the potential to change) 。