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How to choose imported bearings and application precautions
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(1) Grasp the operating conditions of mechanical equipment and bearings, etc. (2) Clear bearing requirements (3) Types of selected bearings (4) Selected bearing equipment methods (5) Selected bearing dimensions (6) Selected bearing standards (7) Equipment method for selecting the bearing The operating conditions and environmental conditions of the bearing are correctly grasped. The operating position, operating conditions and environmental conditions of the bearing in the mechanical equipment are the conditions for selecting the suitable bearing. For this, the following data are obtained and material:
(1) Function and layout of mechanical equipment (2) Operating position of bearing (3) Bearing load (large size, direction)
(4) Rotation speed (5) Oscillation, impact (6) Bearing temperature (ambient temperature, temperature rise)
(7) The surrounding atmosphere (corrosiveness; hygienic; lubricity) is generally selected for bearing equipment; the shaft is supported by two bearings in radial and axial directions; at this moment; the bearing on one side is called the fixed side bearing It accepts both radial and axial loads; the effect of the relative axial displacement between the fixed shaft and the bearing housing. The other side is referred to as the free side; only the radial load is accepted; the axial direction can be relatively moved; In this way, the elastic part of the shaft and the distance error of the bearing of the equipment occur due to the temperature change. Regarding the fixed side bearing; it is necessary to select the available rolling surface to move in the axial direction (such as a cylindrical roller bearing) or to move on the mounting surface (such as Bearings of heart-bearing bearings. On relatively short shafts; there are no other cases on the fixed side and the free side; bearings with only one-way fixed axial movement (such as radial thrust ball bearings). Selection of bearing types When bearing type; it is crucial to grasp the operating conditions of the bearing.
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