Correctly grasping the location of the bearing in the mechanical device and the conditions of use and environmental conditions are the prerequisites for choosing a suitable bearing. In order to do this, it is necessary to obtain the following data and information: The function and structure of the mechanical device .
The use position of the bearing . The bearing load (size and direction) . The rotation speed . Vibration and impact . The bearing temperature (Ambient temperature, temperature rise) 7. Ambient atmosphere (corrosiveness, cleanliness, lubricity) selection of bearing arrangement. Generally, the shaft is supported by two bearings in the radial and axial directions. The bearing is called the fixed side bearing, which bears both radial and axial loads, and plays the role of relative axial displacement between the fixed shaft and the bearing housing.
The other side is called the free side, which only bears radial load, and can move relative to the axial direction, so as to solve the problem ofChina INA Bearing Suppliers the expansion and contraction of the shaft caused by temperature changes and the interval error of installing the bearing.
For fixed-side bearings, it is necessary to select a bearing that can move the rolling surface in the axial direction (such as cylindrical roller bearings) or on the assembly surface (such as radial ball bearings). On relatively short shafts, when the fixed side and the free side are the same, use bearings that only move in one direction (such as plane thrust bearings)
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