where can i find bearings? how to select the bearings?

707 Published by admin1 Jun 11,2018

where can i find bearings? how to select the bearings?

In order to choose suitable bearings, where can i find bearings? Our website! we will tell you how to select the bearing!

In general, the steps for selecting a bearing may be summarized as:
1. According to bearing operating conditions (including load direction and load type, speed, lubrication method, concentricity requirements, positioning or non-locating, installation and maintenance of the environment, ambient temperature, etc.), select the basic bearing types, tolerance levels and clearance;
2. According to the bearing working conditions and force conditions and life requirements, determine the bearing model by calculation, or according to the use requirements, select the bearing model, and then verify the life;
3. Check the rated load and limit speed of the selected bearing.
The main considerations in selecting a bearing are the limiting speed, the required life and load capacity, and other factors that will help determine the final type of bearing type, structure, dimensions and tolerance levels and clearance requirements.

radial self aligning roller bearings-95

Type selection
Various types of rolling bearings have different characteristics and are suitable for different uses of various machines. When selecting the bearing type,
The following factors should generally be considered. Under normal circumstances: Thrust bearings and angular contact bearings are used for thrust loads. Ball bearings are usually used for high-speed applications. When heavy radial loads are applied, roller bearings are used. In short, the selection personnel should choose the right type from different manufacturers and many bearing products.
• The space and position of the machinery occupied by the bearing
In the mechanical design, the size of the shaft is generally determined first, and then the rolling bearing is selected according to the size of the shaft. Usually small shafts use ball bearings, large shafts use roller bearings. However, when the bearing is limited in the diameter direction of the machine, needle roller bearings, special light and ultra-light series ball or roller bearings are selected; when the bearing is limited in the axial position of the machine, narrow or special Narrow series ball or roller bearings.
• The size, direction and nature of the load on the bearing
Load is the most important factor in selecting a bearing. Roller bearings are used for heavier loads. Ball bearings are used for lighter or medium loads. Carburized steel or bainite-quenched bearings can withstand shock and vibration loads.
• Bearing alignment performance
When the center line of the shaft is different from the center line of the bearing seat, there is an angle error, or the shaft rigidity is small due to the large distance between the two bearings of the shaft, and when the force is bent or tilted easily, the tune with good alignment performance can be selected. Ball or spherical roller bearings, and ball bearings. This type of bearing maintains normal operation when the shaft is slightly tilted or bent.

In addition to the above factors, the bearing operating temperature, bearing seals, and special requirements for frictional torque, vibration, and noise must also be considered.

where can i find bearings? how to select the bearings?

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