NACHI is a well-known Japanese bearing brand that has been in the business for over 90 years. Their bearings are used in various industries such as automotive, aerospace, and construction machinery. The manufacturing process of NACHI bearings is a complex and precise process that involves multiple steps. In this article, we will discuss the manufacturing process of NACHI bearings in detail.

Step 1: Raw Materials
The first step in the manufacturing process of NACHI bearings is the selection of raw materials. NACHI uses high-quality materials such as chrome steel, stainless steel, and ceramic to manufacture their bearings. These materials are selected based on the specific requirements of the bearing such as load capacity, speed, and temperature.

Step 2: Forging and Heat Treatment
Once the raw materials are selected, they are forged into the desired shape using a press or hammer. The forged components are then heat-treated to increase their strength and durability. Heat treatment involves heating the components to a specific temperature and then cooling them down rapidly to obtain the desired properties.

Step 3: Turning and Grinding
The heat-treated components are then turned and ground to the required size and shape. This process is done using specialized machines that are designed to provide a high degree of accuracy and precision. The components are checked at every stage of the process to ensure that they meet the required specifications.

Step 4: Assembly
Once all the components are turned and ground, they are assembled into a complete bearing. The assembly process involves fitting the inner and outer rings, balls or rollers, and the cage. The components are pressed together using a hydraulic press to ensure that they are properly seated and aligned.

Step 5: Quality Control
The final step in the manufacturing process of NACHI bearings is quality control. The bearings are subjected to a series of tests to ensure that they meet the required standards. These tests include dimensional accuracy, noise level, and load capacity tests. Once the bearings pass all the tests, they are packaged and sent to customers.

Nachi Japan Original Bearings

Nachi Ball and Roller bearings

Conclusion
The manufacturing process of NACHI bearings is a complex and precise process that involves multiple steps. From the selection of raw materials to the assembly of components, every stage of the process is critical in ensuring that the final product meets the required specifications. NACHI’s commitment to quality and precision has made them a trusted brand in the bearing industry.

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