The assembly process of short cylindrical roller bearings requires the coordination of multiple high-precision machines

The assembly process of short cylindrical roller bearings requires the cooperation of multiple high-precision machines, from the initial inner and outer ring processing to the final inspection and marking of the finished product. The following are detailed assembly steps and equipment instructions:

The assembly process begins with the preparation of the inner and outer rings. The processed inner and outer rings are fed into the assembly line through the inner/outer ring feeder. These feeders ensure the stable feeding of the workpieces and avoid misalignment or damage caused by errors during the processing.

The inner and outer rings enter the demagnetization cleaning and drying machine for processing. Demagnetization is to eliminate the residual magnetism during the processing process to avoid adsorption during the subsequent roller assembly, which affects the accuracy. Cleaning is to remove oil, debris and impurities on the surface to ensure a clean environment during assembly, and after drying, it can prevent oxidation.

The cleaned inner and outer rings enter the measuring and sorting machine for automatic detection of dimensions and tolerances. The equipment can detect the inner diameter, outer diameter and other key dimensions of the workpiece through precision sensors, and automatically sort the workpiece according to the set tolerance range to ensure the accuracy of subsequent assembly.

In the roller assembly machine, the bearing rollers are precisely assembled between the inner and outer rings. The rollers of short cylindrical roller bearings need to maintain extremely high precision and consistency. The assembly machine uses an intelligent control system to ensure the best fit between the rollers and the inner and outer rings to reduce friction and noise.

The total circumferential clearance between the assembled rollers and the inner and outer rings is tested by a testing machine. Accurate control of the total clearance is an important part of ensuring bearing performance. Too large or too small a clearance will affect the life and operating stability of the bearing.

In addition to the circumferential clearance, the axial and radial clearances of the bearing are also parameters that need to be controlled. The axial/radial clearance testing machine uses precision instruments to ensure that the bearing has appropriate clearance to ensure lubrication during operation, and will not fail due to excessive clearance.

In the finished product inspection stage, the axial and radial runout and end face runout of the bearing are tested by special equipment. This link ensures that the bearing rotates smoothly to prevent uneven wear and increased noise caused by runout.

The free rotation of the bearing is tested by a rotation flexibility testing machine. Short cylindrical roller bearings need to maintain light rotation during work to avoid any jamming.

Vibration testing is essential for evaluating the stability of bearings at high speeds. The equipment can quickly determine whether abnormal vibration will occur during the operation of the bearing to ensure high-quality products.

Torque is another key indicator for measuring bearing performance. The torque tester can detect the torque value required by the bearing during startup and operation, thereby evaluating the operating efficiency of the bearing.

Friction torque detection is used to evaluate the friction performance of the bearing under different loads. The measurement of this indicator helps to further optimize the design and lubrication of the bearing and reduce energy consumption.

After the bearing passes all tests, it is marked by a laser marking machine. Laser marking technology can provide permanent and accurate markings, ensuring that each bearing has a unique identification and product information when it leaves the factory, which is convenient for subsequent traceability and management.

In order to prevent the bearing from rusting during storage and transportation, the spray anti-rust technology is used to protect the bearing surface, and then it is quickly dried by a dryer to form a protective film.

The bearing handling between each link on the assembly line is realized by a material handling machine. The automated handling system reduces the errors and losses of manual operation and improves assembly efficiency and product consistency.