Selection principle of motor bearings

Bearing selection is very important, such as motor bearing selection can not choose large, can not choose small.

The bearing selection is large, the load capacity is excessive, and it is even possible that the load borne by the selected bearing cannot meet the requirements of the minimum load, and the early failure of the bearing will occur. Moreover, even if the minimum load of the bearing meets the requirements, such a large bearing is also a waste of selection. If the bearing is selected small, the operating life of the bearing will be shorter than expected, which is not economical, but the performance of the bearing itself does not meet the requirements.

The selection of the size of a single bearing is an important link in the selection and application of motor bearings. At the same time, the two ends of the selection of good bearings for comprehensive consideration, sometimes after some compromise, often can find some potential cost reduction. Similar bearing models or consistent bearing models for shaft systems will help reduce costs:

1.If the front and rear bearing models are consistent, this can reduce the purchase of bearing categories, while increasing the purchase of a single type of bearing, helping to reduce the cost of bearing production and manufacturing, thereby reducing the cost of bearing procurement.

2.The front and rear bearing models are consistent, which can reduce the category and inventory cost of bearing spare parts in the subsequent use of motor bearings.

3.Can avoid some too large, too small bearing selection, reduce the procurement needs of special types of bearings.

4.The two bearings are close, under similar load, bearing life is close, in the subsequent maintenance can be combined maintenance, help to reduce maintenance costs.