Design Principles

The design principle of roller bearings is to use cylindrical, tapered, spherical, or needle rollers as rolling elements instead of ball bearings. These rollers roll between the inner and outer rings, helping to reduce friction and carry the load. Because rollers have a larger contact area than ball bearings, roller bearings can generally support larger radial and axial loads compared to ball bearings of the same size.

Performance Features

The performance features of roller bearings include:

• High load capacity: Due to the larger contact area, roller bearings can support heavier loads.
• Low friction coefficient: Good design and manufacturing can result in roller bearings having lower friction.
• Adaptability: Some types of roller bearings, such as tapered roller bearings, can adjust preload to accommodate different load conditions.
• Durability: Roller bearings are often capable of operating under harsh conditions, such as high loads or shock loads.
• Speed: Certain types of roller bearings, especially cylindrical roller bearings, are suitable for high-speed applications.

Application Scenarios

Roller bearings are suitable for a variety of scenarios, primarily including:

• Heavy industry: Such as mining, papermaking, and heavy machinery, where applications often involve high loads and shock.
• Automotive industry: Tapered roller bearings are widely used in components such as wheel hubs, transmissions, and differentials.
• Railway engineering: Roller bearings are used in the wheel sets and steering systems of trains and railway vehicles.
• Aerospace: Special types of roller bearings are used in aircraft engines and landing gear.
• Energy industry: Such as the main shafts and gearboxes of wind turbines.