NTN bearings anticorrosion and heat smooth way

Improper way also can form the NTN bearing heating. After a smooth can reduce the parts of wear and tear, ensure the accuracy of press, reduce the energy cost. Smooth smooth thin oil slick, thick oil, etc. Thin oil slick: advantage is that internal friction coefficient is small, so to control friction less energy consuming, thin oil good mobility, easy to enter all smooth points of friction surface, has the good cooling effect, and adhesion on the friction surface impurities and can be produced by grinding metal particles away. The defect is the unit of oil film cannot accept big pressure, high request of sealing. High speed press common use large flow more smooth, thin oil can take away the heat generated by the friction pair. Thick oil slick: advantage is easy to seal, loss less, less affected by the temperature, the load property, the speed of change has larger comply with the scope. Defect is the difference in activity, internal friction coefficient is big, so the energy loss is big, long-term work at high temperatures, loses a smooth performance. In order to improve the properties of the thick oil, often in smooth fat in 15% ~ 30% machine oil. Smooth oil viscosity is high, the bearing can be big, bearing flow/J, and power consumption is large, so the bearing temperature rise high. High temperature, smooth landing oil viscosity, so by progress smooth oil viscosity to increase the bearing to limit by NTN bearing. Using the wheel bearings, smooth and fat is critical. Using the smooth transformation of fat, not only don't effect, also can damage the bearing. 1 oil flow check method, took two cups, one need to be checked out the smooth oil, another empty on the desktop, separate the cups with smooth oil for high 30 - desktop 40 cm and tilt, make smooth oil flow gradually to the empty cup, to examine its activity, good quality and smooth oil when the oil flow should be a slender, on average, from time to time, a series of if present oil flow fast and slow, and sometimes has a large flow, says smooth oil has turned. 2, hand twist will smooth oil lay between his thumb and his finger repeat grinding, good smoothness smooth oil hand feel, less abrasive dust, no friction, if feel fingers between the larger friction feeling such as sand, smooth oil indicates the impurity, should change new smooth oil. 3, illumination method in a clear day, lifted with screwdriver will smooth oil, and the degree of surface into a 45 degree Angle. Against sunlight, check the oil situation, under the light, can be clearly seen smooth oil without chip is good, can continue to use, if excessive wear debris, smooth oil should be changed. 4, oil droplets in a clean white filter paper, number of oil drops on the filter paper, after being smooth oil leakage, if there is black powder appearance, touch resistance acerbity feeling, the clear smooth oil inside has a lot of impurity, good smooth oil powder, with the hand feels dry and lubrication, and yellow.