Structure and Model: 80000 series bearings consist of shaft race, seat race, cylindrical rollers and cage assembly. They are divided into single-direction and double-direction types with a separable split structure. They can only withstand axial loads and cannot bear radial forces.

Core Features: The rollers adopt line contact design, offering significantly higher axial load capacity than thrust ball bearings, making them suitable for heavy loads and impact axial forces. They feature ultra-high rigidity and minimal axial deformation. The limiting speed is low, so they are not suitable for high-speed operation. Without self-aligning capability, the mounting end faces must be flat and parallel; slight inclination may easily cause jamming and abrasion.

Comparison with Thrust Ball Bearings: Higher load capacity under the same dimensional specification; lower speed rating, larger size and higher cost; mainly applied for heavy-load working conditions.

Application Scenarios: Heavy-duty machine tool spindles, large lead screws, hydraulic cylinders, rolling mills, mining equipment, large speed reducers, heavy lifting equipment and other heavy-load axial bearing mechanisms.

Key Usage Points: Radial bearings must be matched to undertake radial forces; the mounting support surface shall be strictly parallel without deflection; continuous axial preload shall be maintained during operation to prevent roller slipping and damage; designed for low-speed and heavy-load service, not recommended for high-speed working conditions.