The outer diameter of bearing ring is often subjected to finish grinding after forging or turning. Finishing grinding of bearing ring is an important process in bearing manufacturing, which affects the accuracy and performance of bearing, so it requires higher accuracy and stability.
Finishing grinding of bearing rings is different from grinding of other machine parts. Generally, the inner surface of bearing rings must be finished, otherwise, the bearing inner diameter cannot be formed. Therefore, for finished grinding of bearing rings, it is essential to have not only grinding accuracy but also grinding stability.
The bearing outer diameter grinding usually adopts the centerless grinding process. This process has the following characteristics:
1.The centerless grinding process simplifies the complex bearing inner and outer surface grinding process, eliminates the need for special equipment, and improves the flexibility of bearing equipment.
2.The centerless grinding process has the characteristics of high production efficiency, good grinding accuracy and low grinding cost, which makes it suitable for batch production or mass production.
3.The centerless grinding process is suitable for not only the grinding of bearing raceway, but also the spherical grinding of bearing ring outer diameter. It has a wide range of application.
4.The centerless grinding process also has a high degree of automation. It has functions such as automatic adjustment of grinding wheel, automatic feeding, automatic loading and unloading, automatic replacement, etc., which can greatly improve production efficiency.
5.The centerless grinding process has no eccentricity, which ensures the consistent shape and size of bearing rings, improves the accuracy and quality of bearings, and reduces the starting friction coefficient.
6.The grinding wheel has good cooling, strong self-sharpening and strong impact resistance, which can enhance the grinding force and abrasiveness, reduce the grinding temperature, reduce the grinding burr, and improve the surface quality of the grinding parts.
In summary, the main features of the centerless grinding process of bearing ring outer diameter are simple process, high production efficiency, good accuracy, low cost, wide application, high degree of automation and no eccentricity. These features not only make it benefit to the accuracy and performance of bearing, but also establish a favorable internal and external quality foundation for the bearing research and development and design, and make a great contribution to the production of high-precision high-performance bearing.
