Testing Methods and Test Scope of Bearing Testing Machines

Bearings are the "blood" of industrial production and a sophisticated component in the overall mechanical linkage system. With the deepening of research on bearings, bearing testing machines have emerged as a foundational facility for bearing manufacturing. Today, Kaiyuan’s editor will explain the testing methods and test scope of bearing testing machines.

I. Testing Methods of Bearing Testing Machines

1. Full Test

Testing methods can be classified into full test, truncated test, time/count truncated test, group elimination test, sequential test, etc. The full test method involves testing an entire group of bearing samples under the same test conditions until all samples fail.

2. Truncated Test

The truncated test method involves testing a portion of a group of bearing samples under the same test conditions until the tested samples fail.

3. Time/Count Truncated Test

A group of bearing samples is tested under the same test conditions until a predetermined time (or number of failed samples) is reached, at which point the test is stopped. This method is usually adopted to evaluate specific properties of the tested products.

4. Group Elimination Test

In a group elimination test, a group of bearing samples is randomly divided into subgroups. Each subgroup is then tested under the same conditions until one failed sample appears in a subgroup, and that defective product is eliminated.

5. Sequential Test

A sequential test involves sequentially evaluating failed samples from a group of bearings tested under the same conditions.

II. Test Scope of Bearing Testing Machines

1. Bearing Working Condition Simulation

Bearing tests are simulation tests conducted on testing machines under conditions that replicate the actual rotational speed, load, operating temperature, pressure, etc., of the bearings. It serves as an important means of simulating real bearing working conditions.

2. Compliance Verification

It is an essential part of verifying whether bearings meet design requirements and subsequent finalization for installation. By focusing on faults or failures as the core research objects, the fundamental goal is to improve reliability through identifying, researching, and resolving the root causes of these issues.

3. Lubricating Oil Performance Evaluation

It is also an effective way to study lubricants and bearing material properties. Bearing testing machines can be used to investigate the mechanism of lubricating oil film formation in bearings, as well as the variation laws of oil film pressure distribution, temperature at lubrication points, friction coefficient, and wear. Thus, it is a reliable method for evaluating the lubricating performance of oils.

The above is the introduction by Kaiyuan’s editor about the testing methods and test scope of bearing testing machines. Since its establishment, Kaiyuan Intelligent has been rooted in the bearing industry and possesses strong R&D capabilities and team advantages in online intelligent testing software and hardware. If you have relevant product needs, please feel free to call us—Kaiyuan Intelligent is available 24/7 to serve you.