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How to choose the FAG bearing imports and meet the requirements of the

How to choose the FAG bearing imports and meet the requirements of the

1, the selection of bearing types: type of bearing is generally done by customers according to the conditions of use and supporting products bear the load on the FAG import bearing selection. If the actual load business personnel mainly to understand the user's consistent with the selected bearing, if the bearing are not up to the requirements, should advise the customer as soon as possible options model, but unless special products in the choice of models generally do not have what problem.
2, selection of bearing clearance: the user at the time of purchase bearing generally will only inform on what type, grade, few would claim on bearing clearance, business people must ask bearing conditions of use, the bearing speed, temperature, tolerances are directly related to the import of FAG selection of bearing clearance. The motors are generally below 3500 rpm speed mostly use CM clearance, such as high temperature and high speed motor requires relatively large with clearance. Bearing clearance after assembly because of reduced round inner hole and the outer swollen and lead to reduced, clearance reduction amount = X60 60% (except for the bearing housing is aluminum). For example, bearing clearance before assembly is 0.01mm, assembly interference of 0.01mm, then the clearance of 0.004mm bearing assembly. In theory bearing noise in the zero clearance and life to achieve the best state, but consider the problem to the temperature rise in the actual operation, bearing clearance after assembly is 0.002mm-0.004mm better.
3, grease selection: selection of oils are generally choose according to bearing speed, temperature, noise requirements and starting torque, business personnel performance requirements of various oils is very understand.
4, selection of bearing type: lubrication FAG bearing imports can be divided into the lubricating oil and grease lubrication. Oil lubricated bearings are generally choose the mode of bearing, grease lubricated bearings are generally use dustproof cover or rubber seals. Dust cover is suitable for high temperature or use good parts, seal two kinds of sealed contact and non-contact seal, contact type sealing dustproof performance is good but the torque, non-contact seal the starting torque is small, but good sealing properties of no contact.
Coordination selection
The dimension of inner diameter and outer diameter size of rolling bearings is made according to the standard of tolerance, tolerance of bearing inner ring and shaft, outer ring and the seat hole with the degree of tightness only through tolerance and seat hole to achieve the control shaft neck. With the bearing inner ring and shaft using the basic hole system, combined with the outer ring of the bearing seat hole using shaft system.
The correct choice of cooperation, must know the actual load condition of FAG imported bearings, working temperature and other requirements, and it is very difficult. Therefore, in most cases is based on the use of lapping selection matching.
The size of load
The ring and the shaft or housing between the winning amount depending on the size of load, heavier loads used to win the amount is larger, lighter load used to win a small amount of.

 

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