Generally, the installation space for rolling bearings is limited. In most cases, the diameter of the shaft (or the inner diameter of a rolling bearing) is limited by mechanical or other designs. Therefore, the type and size of the rolling bearing are determined according to the inner diameter of the rolling bearing. Therefore, the main dimension tables of proportional roller bearings are compiled according to international standard inner diameter dimensions.
Rolling bearings vary in size. In the design of the mechanical device, it is best to use standard roller bearings (this design is easy to buy roller bearings, which is a problem. Some imported rollers have some models in the bearing catalog, but some are not standard mainland China. Rolling bearings are not available from stock.
In some cases, futures can take a long time, so when choosing a rolling bearing, you should consider the cost of time and future replacement costs. Bearings, that is, the loads applied to rolling bearings, are variable in nature, size, and direction. Generally, the rated basic load is shown on the size table. However, axial and radial loads are also important in selecting a suitable rolling bearing. factor.
When the size of the ball and roller bearing is commensurate, the roller bearing usually has a higher load capacity and can withstand larger vibration and shock loads. Second, the speed [h] allows the speed to be maintained according to the type, size, accuracy and maintenance of the rolling bearing. Frame type, load, lubrication method and cooling method are determined. The roller bearing table lists the speeds of standard precision roller bearings under oil and grease lubrication.