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Technical Standard For Bearing Quality Inspection
Technical Standard For Bearing Quality Inspection
2022-01-14
Control Value Of Axial Clearance Of Self-Aligning Ball Bearing
Control Value Of Axial Clearance Of Self-Aligning Ball Bearing
2022-01-15

Commissioning And Measurement Of Bearing

Commissioning 

During use, the basic external conditions of bearing operation shall be monitored frequently, such as temperature, vibration and noise measurement. These regular inspections will identify potential problems as soon as possible, prevent unexpected machine suspension, realize production plans and improve plant productivity and efficiency.

During operation, the bearing requires correct re lubrication to perfect its performance. The lubrication Commissioning methods of micro bearings are divided into grease lubrication and oil lubrication.

In order to make the bearing function well, first of all, choose the lubrication method suitable for use conditions and purposes. If only lubrication is considered, the lubricity of oil Commissioning lubrication is dominant. However, grease lubrication has the advantage of simplifying the structure around the bearing.

The accuracy grade of the bearing shall be improved successively from grade 0. Grade 0 is sufficient for general purposes, but grade 5 or Commissioning higher accuracy is required for the conditions or occasions shown in Table 1.

Although the above accuracy levels are based on ISO standards, their names are different in national Commissioning standards.

The Accuracy grades applicable to various bearing types and the Commissioning comparison between national standards are listed.

Commissioning And Measurement Of Bearing

Dimensional accuracy (items related to shaft and Housing installation)

1. Allowable deviation of inner diameter, outer diameter, width and assembly width

2. Allowable deviation of inner and outer diameter of roller set

3. Allowable limit value of chamfer size

4. Allowable variation of width

Rotation accuracy (items related to the runout of the rotating body)

1. Allowable radial runout and axial runout of inner ring and outer ring

2. Allowable lateral runout of inner ring

3. Allowable variation of inclination of outer diameter surface

4. Allowable variation of thrust bearing raceway thickness

There are many sizes and forms of standard bearings, Standard bearings are used in the design of mechanical devices (this is easy to purchase for bearings. Here’s a digression. Some of the bearings catalog models do Commissioning have some, but some non-standard bearings are not available in Chinese mainland, and sometimes futures will be very long time.

Therefore, bearing load should be considered when bearing cost is selected in the case of bearing Commissioning selection). The nature, size and direction of the load applied to the bearing are changeable. In general, the rated base load is shown on the dimension table.

However, axial load and radial load are also important factors in selecting suitable bearings. When the ball and needle roller bearings have the same size, needle roller bearings usually Commissioning have high load capacity and bear large vibration and impact loads.

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