1: ntn bearing cleaning focus:1, cleaning the surface of the object stateSmooth surfaces and rough uneven surfaces cleaned the same way, the effect achieved is very different. In the choice of cleaning method should fully take into account the surface conditions.2, the situation of dirtDirt to be used for different a different cleaning agent for metal surface with oil-based dirt and to scale, oxide-based dirt the selected cleaning agent

1: ntn bearing support seal:ntn bearing support sealing means bearing external, such as ntn bearing shell parts, shaft parts, and cover part of the additional sealing devices.Bearing seals in the choice of bearings should be considered when the bearing lubricant type (fat or oil), sealing contact with the surface of the circular speed, bearing misalignment, and many other factors.

Ntn roller bearings on the metal shavings and other foreign bodies are particularly sensitive, ntn bearing Once foreign body, will result in large intermittent vibration and noise, will lead to early damage. In addition, ntn roller bearings impurities due to metal clips, also prone to the possibility of early damage. Even if the damage does not occur early, rolling ntn bearing life there are certain limits. In short, ntn roller bearings life shorter than the slide ntn bearing

1: ntn bearing performance:1.ntn bearing stiffnessntn bearing stiffness, is ntn bearing power generating units, the size of the required deformation. Rolling of elastic deformation is small, in most machines do not have to be considered, but in some machines, such as machine tool spindle,the bearing stiffness is an important factor, the general should be used cylindrical and tapered roller bearings. Because these two types of bearings and loaded

ntn bearing support choose to pay attention to four problemsFirst, how to limit the axial position, including the radial and axial position are the first issues to consider. General dual-axis multi-support structure, the radial shaft supported by two co-limited, each supporting Department should play the role of radial positioning or angular contact bearings to the heart.Second, the axial position of supporting the restrictions by the two axial displacement in one direction is also limited by a supporting axial displacement in both directions,

1: ntn bearing quenching oil Optional:1. Ordinary quenching oil (oil temperature at 60 ℃ for quenching)Ordinary quenching oil is mainly applied to better hardenability alloy, such as small size bearing steel, mold steel part quenching. The past, only with different grades of domestic mechanical oil as quenching oil. The early 20th century 80, in order to improve the performance of oil cooling, thermal oxidation stability and rust resistance, mechanical oil added to the reminder of cold,