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Detailed explanation of bearing durability test method


Release time:

2023-12-26


1. Overview

Bearing durability test (Bearing Durability Test) refers to the test method to evaluate the durability and life prediction of bearing through a long time test. Durability test is one of the important means of bearing detection and evaluation, and it is also the basis of bearing design and quality control.

2. classification

According to the test load type, the bearing durability test can be divided into three types: torsion test, radial load test and impact load test; according to the test conditions, it can be divided into three types: basic test, simulation test and special test.

3. method

1. Torsion test

Torsion test is a test method to evaluate the fatigue life of the bearing by controlling the speed of the inner ring of the bearing, the load of the outer ring and the running time. At present, the common torsion test methods at home and abroad include ISO281:2007 standard method, ABMA 9, 11 standard method and so on.

2. Radial load test

The radial load test is carried out by controlling the pressure, load and speed between the inner and outer rings of the bearing. At present, the common radial load test methods at home and abroad are ISO281:2007 standard method, ABMA 9, 10 standard method and so on.

3. Impact load test

The impact load test is a test method that simulates the actual working conditions by applying an impact load to the bearing. At present, the common impact load test methods at home and abroad are ISO281:2007 standard method, ABMA 9, 13 standard method and so on.

4. standard

Bearing durability test is divided into basic test, simulation test and special test, and their corresponding domestic and foreign standards are:

1. Basic tests: GB/T307.1-2018, ISO281:2007, JIS B 1519-2017, DIN 3990-3/4

2. Simulation test: GB/T307.2-2017, ISO1132-1:2000, JIS B 1538-2010, DIN 40050-9

3. Special test: GB/T307.3-2019, ISO1101:2017, JIS B 1525-1988, DIN 40050-15

5. considerations

Bearing durability test, need to pay attention to the following points:

1. The test equipment shall be calibrated before the test to ensure the accuracy of the test data;

2. The test shall be carried out according to the same standard and test method, otherwise the test results of different standards cannot be compared;

3. Record the data during the test, including the running time, speed, load, temperature, etc. of the bearing, in order to evaluate the durability of the bearing.

In summary, bearing durability test is an important method to measure the performance of bearings, and plays an important role in bearing design and manufacturing. The correct durability test methods and standards can provide reliable data support for the development and promotion of bearings.

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