Sunflower-Type Bearing Cages

Design Principle The petal-shaped radial structure forms 12-15 micro-vortex areas, driving the directional flow of lubricants through centrifugal force; the asymmetric geometry breaks the resonance frequency and reduces vibration transmission. Integrated 3D printing ensures the accuracy of flow channels, making it suitable for complex load distribution. Performance Characteristics Efficient Heat Dissipation: The radiating fin design increases heat dissipation efficiency by 30% and reduces operating temperature by 25°C. - High-Speed Adaptability: The maximum DN value reaches 1,200,000 (mm×rpm), with the critical speed increased by 50%. Low Vibration: The asymmetric structure reduces the vibration amplitude to 0.3μm, 70% lower than that of conventional cages. Long Service Life: Hot isostatic pressing eliminates porosity, increasing the fatigue life by 3 times.

1. Core Structural Design Petal-shaped radial layout (12-15 petals) with spiral guide grooves between each petal; 3D printing integrated forming ensures the accuracy of flow channels and avoids assembly errors. Selective Laser Melting (SLM) technology is used to build internal lattice structures, achieving a "rigidity-lightweight" balance. 2. Lubrication and Heat Dissipation Mechanism Driven by centrifugal force, the petals deflect slightly outward, and the guide grooves form directional lubricant flow; the micro-vortex areas enhance oil film adhesion and reduce dry friction. The radiating fins expand the heat dissipation area, and combined with the high thermal conductivity of materials (such as Silicon Nitride with a thermal conductivity of 30 W/mK), heat is quickly dissipated. 3. Vibration Suppression and Stability The asymmetric geometry causes gradual changes in stiffness in all directions, breaking the resonance frequency; the low-roughness surface (Ra < 0.05μm) processed by ion beam reduces roller friction and vibration, improving the operational stability of the bearing. 4. Material and Process Synergy Hot Isostatic Pressing (HIP) treatment eliminates 99.9% of material porosity and improves fatigue strength; surface coatings (such as diamond-like carbon) reduce the friction coefficient, and when combined with the lubrication optimization of the petal structure, the service life is extended by 3 times.