Tapered Roller Thrust Bearing

Design Principles: Adopt precise taper angle matching design of tapered rollers and conical raceways, with contact line extensions intersecting at the bearing axis, enabling axial loads to be evenly transmitted to the shaft washer and housing washer through line contact. The load-bearing density is 3-5 times higher than that of thrust ball bearings; single-row models achieve unidirectional axial positioning through a single row of rollers, while double-row models can bear bidirectional axial loads through a double-row symmetrical roller design. Some models are equipped with spherical housing washers to achieve ±1°-2° self-alignment, compensating for installation misalignment and shaft deflection. The split structure facilitates installation, disassembly and maintenance of large-size equipment without overall disassembly of related components; raceways are ground for heavy-load reinforcement, and roller end faces are optimized to reduce friction loss and temperature rise, adapting to long-term heavy-load operation. Performance Features: Core High Axial Load Capacity: Taper angle matching + line contact design, single-row models with maximum axial load up to 5000 KN, double-row models up to 8000 KN, 3-5 times higher than thrust ball bearings of the same size, adapting to the axial heavy-load requirements of ultra-heavy equipment. Flexible Unidirectional/Bidirectional Adaptation: Single-row models are compact, suitable for unidirectional axial positioning scenarios; double-row models can bear bidirectional axial loads, with built-in self-aligning function, adapting to complex eccentric load scenarios without additional thrust bearings. High Rigidity & Shock Resistance: Reinforced materials and conical contact design, outstanding deformation resistance and shock resistance, capable of withstanding high-frequency impact loads, adapting to harsh working conditions such as mining and metallurgy. Long Service Life & Stability: Surface hardening treatment of GCr15 material, precision polishing of roller end faces (Ra≤0.08μm), fatigue life increased by 40% compared with conventional thrust bearings, adapting to long-term continuous operation. Full Coverage of Large Sizes: supporting non-standard customization, perfectly replacing imported large-size series, filling the gap of domestic heavy-load thrust bearings. Customization Options: Supports non-standard size (shaft washer/housing washer size, thickness) customization, corrosion-resistant material (SUS440C) customization, unidirectional/bidirectional structure selection, self-aligning angle optimization (double-row models), special lubrication solutions for high/low temperature, and cage material customization (heavy-load dedicated).

Working Principle Roller Arrangement and Load Distribution: Tapered rollers are evenly distributed along the annular raceways of the shaft washer and housing washer. The precise taper angle matching of rollers and raceways ensures that the extension lines of contact lines intersect at the bearing axis, forming a stable load transmission path. Axial loads are evenly transmitted through line contact between rollers and raceways, avoiding local overload; double-row models bear bidirectional axial loads through a double-row symmetrical roller design, and the spherical housing washer allows rollers to adjust their posture slightly to compensate for ±1°-2° installation misalignment; the cage guides the rollers to move orderly, reducing frictional interference and improving operational stability under heavy loads. Thermal Management and Sealing: Thermal Management: Precision grinding of raceways and rollers + low-friction cage design reduce frictional losses and effectively control operating temperature rise (typical temperature rise ≤18°C); combined with the thermal stability of heavy-duty grease or circulating oil, it ensures the thermal stability of equipment under heavy load and medium-high speed. Installation Adaptability: The shaft washer adopts an interference fit with the shaft (shaft h7), and the housing washer adopts a transition fit with the housing (hole H8), compatible with the assembly tolerance requirements of most heavy industrial equipment; the split structure supports separate installation of the shaft washer, housing washer and roller assembly, adapting to complex assembly processes; the self-aligning function of double-row models reduces the requirement for the parallelism of the installation datum plane, simplifying the assembly process; the large-size design provides sufficient installation space, and the clearance can be precisely controlled through adjustment shims, ensuring accurate installation and stable operation.