The core process of customized automotive bearings revolves around high-precision and high reliability requirements, covering key links from raw materials to finished products throughout the entire process:
Customized raw material selection
High purity GCr15 or GCr15SiMn bearing steel is selected according to working conditions, and silicon nitride ceramic rolling elements can be used in some special scenarios to ensure wear resistance and impact resistance from the source.
Precision forming process
The ring is formed using hot forging/cold rolling technology, with precise control of the initial and final forging temperatures, optimization of metal streamline distribution, and elimination of internal structural defects.
.Heat treatment strengthening
Through precise quenching and tempering processes, the surface hardness of the bearing is stabilized to HRC60-65, while retaining the toughness of the core, suitable for extreme temperature difference conditions of -40 ℃~150 ℃.
.Micron level precision machining
High precision grinding technology is used to control the dimensional tolerances of the inner and outer diameters and channels within ± 0.002mm, ensuring the accuracy of bearing operation and low noise performance.
.Customized testing and verification
Special tests such as high-speed durability, salt spray, and life simulation have been completed for customized needs. Some customized bearings for new energy vehicle models also need to meet the noise index requirement of ≤ 45dB.
.Assembly and Quality Control
Through precise control of clearance by automated equipment, more than 12 inspection levels are completed throughout the entire process to ensure that customized products are suitable for the special working conditions of the target vehicle model.
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