ntn bearing support the option of following a few problems

ntn bearing support choose to pay attention to four problems
First, 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, under normal circumstances, a different way axial positioning accuracy available to the different operation. Therefore, the design of the supporting structure shall be based on the precision of the operation shaft and working conditions, select the axial location of the specific programs.
At the same time to bear radial load and axial load case, often supported by angular contact bearings and tapered roller bearings installed in pairs. Angular contact bearings installed in pairs arranged in three ways. Bearing outer ring face two relatively wide installation called back to back installation. 2 bearing supporting the role of point falls outside the span. This arrangement for supporting a large span, when the steel cantilever axis of good, axial elongation when heated, the outer ring was torn off the trend, which axis is not stuck, so use the more widely accepted. Should the use of pretension, but the installation, when heated in the axial preload amount will be reduced. Relatively narrow outer end of two bearings installed on said mounting face to face.
The force of the two supporting points fall within the bearing span. This arrangement of simple assembly and disassembly, it is convenient to use than debugging is also more extensive, mainly for minor axis and the temperature is not high occasions, but attention must be left to stand clearance. Axial clearance should not be too large, reduce the axis running through the General Assembly accuracy.
Third, when the axial load is large, many bearing the same time required to bear, often with bearing outer ring width, relatively narrow surface mode series installed. The bearing force points are falling so that the same side of the bearing arrangement with the known series. When using this arrangement to pay attention to the structure and manufacturing to ensure that each bearing can bear the load as even as possible.
Fourth, the machine in operation, the general spindle or shaft of the temperature is higher than the temperature of the adjacent parts, which will heat up axial elongation. In order to maintain the axis of rotation and flexible design of the supporting structure, the axial positioning accuracy to meet the requirements, we must also consider the free expansion axis heating requirements. Axial position and axial expansion of the approach is the corresponding.
ntn bearings in the pump in the rolling bearing service life of 20,000 ~ 80,000 hours, but the actual life depends on many factors - premature bearing failure will lead to the high cost of equipment downtime, and sometimes may even lead to more serious consequences. FAG Bearing Co., Ltd. Tianjin boggy bearing expert offers some simple but practical tips optimize bearing performance.
ntn bearing life begins at the right choice. From the beginning, ntn bearings for different applications by designers to select the correct bearings to extend bearing life and equipment performance. This process should take into account many factors, such as load, hardness, bearing life prediction, operating environment and so on.
Effectively extend the life of imported bearings ntn 2 ways:
First, ntn bearing the correct storage
In principle, all the imported bearings before installation should save in their original packaging. They need to stay in a clean, no humidity, relative temperature of the environment. Rolling should stay away from dust, water and corrosive chemicals. Shaking and vibration might be able to destroy the mechanical properties of bearings, so the process of handling and storage must avoid the shock.
Second, the level of all the bearings must be kept, because some of the heavier ntn bearing long vertically, it may be deformed because of its own weight.

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