Custom Automatic Transmission Bearings

How to ensure the matching accuracy and assembly quality of each component during the assembly of automatic transmission bearings? How to control the assembly clearance and preload?

Key measures to ensure matching accuracy and assembly quality
1. High-precision parts manufacturing
YININ Company starts from the source and adopts modern manufacturing equipment and precision measuring tools, such as CNC machining centers, three-coordinate measuring instruments, etc., to ensure that the size accuracy, shape accuracy and position accuracy of key components such as bearing inner and outer rings, rolling elements, and cages meet the design requirements. Through strict raw material screening and heat treatment process optimization, the hardness and wear resistance of bearing materials are further improved, laying a solid foundation for high-precision assembly.

2. Advanced assembly technology and equipment
In the assembly process, YININ introduced automated assembly lines and intelligent detection systems, and used high-tech means such as machine vision technology and laser ranging to achieve precise positioning and assembly of bearing components. For example, the precise placement of bearings by high-precision robot arms avoids assembly errors caused by human factors. At the same time, ultrasonic cleaning technology is used to thoroughly remove oil and impurities on the surface of parts to ensure the cleanliness of the assembly surface and further improve the assembly quality.

3. Strict assembly process control
YININ has established a detailed assembly operation manual (SOP) to clarify the standard process, precautions and inspection standards for each step of the assembly operation. From the pre-processing, assembly, debugging to the final inspection of parts, strict quality control is implemented at each step to ensure that each assembly link can achieve the accuracy required by the design. In addition, a special quality inspection team is set up to monitor and record the key control points in the assembly process in real time to ensure that problems are discovered and corrected in time.

Scientific methods for controlling assembly clearance and preload
1. Accurate clearance measurement and adjustment
Assembly clearance is one of the important factors affecting the operating performance of bearings. YININ uses precise clearance measurement tools such as vernier calipers, micrometers and optical measuring instruments to accurately measure the clearance between bearings and shafts and bearing seats. According to the measurement results, the assembly clearance is accurately controlled by adjusting the position of the bearing seat, using adjustment shims or precision grinding the journal, ensuring that the bearing runs at the optimal working clearance, reducing friction loss and improving operating efficiency.

2. Reasonable preload setting
Preload is another key technical parameter in bearing assembly, which directly affects the bearing's load capacity, rotation accuracy and service life. YININ uses professional preload calculation software based on bearing type, size and application scenario, combined with rich experience data, to accurately calculate the required preload range. In actual operation, the bearing preload is precisely controlled through structures such as preload bolts and spring washers. At the same time, the actual effect of the preload is verified through vibration testing, stress analysis and other means to ensure that the bearing works under the optimal preload state, which not only prevents early failure caused by excessive preload, but also avoids vibration and noise problems caused by insufficient preload.

3. Dynamic monitoring and continuous optimization
After assembly, YININ also uses a dynamic monitoring system to monitor the operating status of the bearing in the gearbox in real time, including key parameters such as temperature, vibration, and noise, to promptly discover and solve potential assembly problems. By collecting and analyzing operating data, the assembly process and parameter settings are continuously optimized to continuously improve the assembly quality and operating performance of the bearing.