The quality evaluation of imported bearings
Introduction
The bearing is an indispensable part of machine manufacturing, and its quality directly affects the life and running performance of the machine. This article focuses on how to evaluate the quality of imported bearings, which is of great significance to ensure the quality of bearing products.
Overview of Quality Evaluation Process
The general process of quality evaluation of imported bearings includes material selection, bearing processing, rolling bearing assembly, inspection of bearing inner and outer rings, bearing inspection assembly and so on. In terms of material selection, we need to ensure that the material of each part satisfies the technical requirements of the drawing, and conduct sampling inspection to check whether the components are qualified. Secondary processing includes heat treatment, cleaning, grease lubrication, testing and packaging. The rolling bearing assembly requires qualified personnel to do it, because its assembly method and accuracy have strict requirements. It needs to inspect the inner and outer ring of the bearing to make sure that the size, roundness, roughness and other parameters meet the requirements. After assembly and inspection, it needs to detect the performance of the whole bearing. If the performance is qualified, it needs to detect the whole bearing packaging, put the production code and other information on the package, and store it under good conditions.
Major Factors to Consider in Quality Evaluation
In order to evaluate the quality of imported bearings, we should mainly consider the following aspects:
Material selection: the key factor is whether the material of each part meets the technical requirements of the product drawing.
Bearing processing: the important factors include heat treatment process, cleaning technology and lubrication degree.
Rolling bearing assembly: it is mainly concerned with whether the finished bearing is correctly installed, adjusted and calibrated.
Inspection of bearing inner and outer rings: focus on the size, shape and production precision of bearing rings.
Performance inspection of finished bearings: it is necessary to evaluate the performance of finished bearings in terms of fatigue life, noise, vibration, etc.
Packaging: pay attention to the label of bearing information, packaging and storage conditions.
Conclusion
In summary, the quality evaluation of imported bearings includes material selection, bearing processing, assembly, inspection of bearing inner and outer rings and performance inspection of finished products. It is of great significance to ensure the quality of the bearing. Therefore, in the process of quality evaluation, we should pay attention to the selection of materials, bearing processing, assembly, inspection and performance inspection of the bearing, so as to ensure the quality of the bearing product.
