how to choose k bearing type and type

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Bearing selection to choose bearing nsk bearing dimensions, specifications and speed for compliance with our mechanical use, the following analysis:
1, bearing size li mitroller ball bearing
Usually bearing can be installed in the space is restricted. In most cases, shaft (or bearing inner diameter) is a limit in accordance with the mechanical design or other designs. Bearing type and size selection is determined according to the inner diameter of the bearing. As a result, the main dimensions of the table of standard bearings prepared in accordance with the international standard bore size.
The size of the standard bearing many forms, the best mechanism design using standard bearings (bearings for easy design to procurement, on an aside here, does have some bearing catalog models, but some non-standard bearing in mainland China is not in stock, sometimes futures will be a long time, so consider the time cost and the late replacement cost) bearing the load, the load applied to the bearing in the bearing selection, by their nature, size, direction is changing s. Typically, the basic rated load size table are displayed. But the axial load and radial load, etc., are also important factors to select a suitable bearing. When the equivalent of the size of the ball and needle roller bearings, needle roller bearings usually have a higher load capacity to withstand vibration and shock loading.slewing ring bearing
2, the rotational speed of the bearing
Allowable speed according to the type, size, precision of the bearing, the cage type, load, lubrication, and cooling mode factors determine. Bearing table lists the standard accuracy nsk bearing oil lubrication and grease lubrication allows speed. Typically, deep groove ball bearings, self-aligning ball bearings and cylindrical roller bearings are suitable for high-speed operation of the occasion.