Ball bearings are mechanical components that use balls as rolling elements, mainly used to support rotation, reduce friction, and withstand radial and axial loads. Its core structure includes an inner ring, an outer ring, balls, a cage, and a seal. The balls are evenly distributed through the cage to avoid friction, while the seal prevents contaminants from entering.
Manufacturing and Materials
Material: High carbon bearing steel is usually used, which needs to have high contact fatigue strength, wear resistance, and rust prevention performance
1. The manufacturing process includes hot forging, rough machining, precision grinding, and assembly, and each step requires strict precision control
2.
Lubrication and sealing: Lubricating grease is temperature sensitive, and high temperatures can cause it to fail, thereby increasing friction; Seals can prevent dust from entering and prevent lubricating grease from being contaminated as "grinding paste"
3.
Application and maintenance
Application areas: Widely used in heavy-duty or high-speed scenarios such as metallurgy, wind power, mining machinery, etc
1. For example, NSK's 6004DDW1CM bearing (produced in Kunshan) is used for industrial power transmission.
Maintenance points: It is necessary to regularly check the lubrication status and cooling system to avoid bearing damage caused by thermal management failure or insufficient lubrication
