Back steel porous solid lubricant dispersion type self-lubricating
Product Name: 200#B Back Steel Porous Solid Lubricant Dispersion Type Self-Lubricating Bearing
Model: 200#B
Brand: GD
Primary Materials: 200#
Metallurgical Porosity Engineering
Diffusion-enabled lubrication technology
Capillary Lubricant Retention
The 200#B features 28-32% interconnected porosity through powder metallurgy sintering (ISO 2739 compliant). This bearing lubricant reservoir structure absorbs 19x its mass in PTFE-MoS₂ composites. Electron microscopy reveals the wheel bearing lubricant migration occurs through 8-12μm pore channels during operation - self-replenishing the friction interface continuously. Hydraulic press testing shows the ball bearing lubricant system maintains μ<0.06 for 8,000+ cycles versus petroleum-based alternatives requiring weekly maintenance. Crucially, the steel matrix compresses under load to actively pump bearing lubricant through micron-sized ducts.
Structural Reinforcement
Compression testing proves the porous back steel achieves 580MPa yield strength through diffusion-bonded reinforcements. Crane boom applications demonstrate zero brinelling at 18-ton dynamic loads.
Tribological Performance Science
Friction optimization dynamics
Shear-Responsive Lubrication
Rheological analysis confirms this bearing lubricant transforms from viscoelastic state (at rest) to shear-thinning fluid (μ=0.08) above 200 RPM. Under extreme crane hoist conditions, the wheel bearing lubricant forms protective polymer tribofilms preventing metal-on-metal contact at >20MPa contact pressure. The unique ball bearing lubricant chemistry self-replenishes after momentary dry starts - eliminating galling during press machine overload events.
Contaminant Conversion System
Field studies show this bearing lubricant chemically converts 92% of incoming abrasives to fine graphite tribofilms. Wind turbine hubs operated with >80% original wheel bearing lubricant after decade-long use in desert conditions.
Heavy-Duty Application Validation
Industrial stress simulation
Cyclic Fatigue Resistance
The porous matrix distributes stress across 9,800/mm² micropores. Automotive mold applications record <0.02mm creep after 500,000 compression cycles at 2.5GPa. Accelerated crane testing (FEMEX 98210) confirms the ball bearing lubricant maintains uniform viscosity across -30°C to 150°C operational extremes.
Corrosion-Abrasion Immunity
Salt spray testing (2000hr, ASTM B117) shows no microcrevice corrosion thanks to electroless nickel sealing. Hydraulic press installations reveal 73% less wear than bronze bearings when processing galvanized steel.
Environmental Compatibility Systems
Cross-industry performance
Thermal Endurance Mapping
Thermal cycling analysis (-54°C ↔ +260°C) proves <0.8% pore distortion through titanium stabilization. Aluminum smelting plant applications maintain consistent bearing lubricant delivery at 450°C ambient temperatures.
