The MG-850BM bearing represents a high-performance solution designed for extreme operating conditions. Through innovations in structure, materials, and lubrication, it seamlessly addresses the failure challenges of traditional bearings under heavy loads, low speeds, high temperatures, and where continuous lubrication is not possible. Its core value lies in its exceptional reliability, long service life, and minimal maintenance requirements.
◆ Features
● Extreme Load Capacity – Designed for heavy-duty, low-speed applications with high static and dynamic load capacity.
● High-Temperature Resistance – Operates reliably in high-temperature environments where conventional lubricants would degrade or fail.
● Self-Lubricating or Boundary Lubrication – Reduces dependency on continuous external lubrication, making it suitable for applications where relubrication is difficult or impossible.
● Long Service Life & Minimal Maintenance – Engineered for extended operational life with reduced maintenance intervals, lowering total cost of ownership.
● Enhanced Reliability – Addresses common failure modes of traditional bearings under extreme operating conditions.
● Corrosion & Wear Resistance – Built to withstand harsh environments, including moisture, dust, and chemically aggressive media.
◆ Material Structure
MG-850BM bearings are manufactured with a robust material composition engineered for extreme operating conditions:
1. High-strength steel backing – Provides structural integrity and mechanical strength for heavy-load applications.
2. Sintered porous alloy interlayer – Typically bronze or iron-based alloy, acting as a reservoir for solid lubricants.
3. PTFE-based or polymer composite surface – Offers low friction and self-lubricating properties. May include solid lubricants such as graphite, MoS₂, or other proprietary additives.
4. Optional corrosion-resistant coating – Tin or copper plating on the outer diameter for enhanced environmental protection.
◆ Core Performance Advantages
● High Load Capacity – Engineered to withstand high static and dynamic loads in heavy-duty applications.
● Self-Lubricating Capability – Built-in solid lubricants provide continuous lubrication without external oil or grease.
● High-Temperature Stability – Maintains mechanical properties and lubricating performance at elevated temperatures.
● Extended Service Life – Reduces wear and extends operational life compared to traditional bearings in demanding environments.
● Maintenance-Free or Minimal Maintenance – Minimizes downtime and maintenance costs.
● Versatile Operation – Suitable for rotating, oscillating, and linear movements under extreme conditions.
◆ Technical Data
| Technical Data – MG-850BM Bearing | |
| Max. static load | 300~350 N/mm² |
| Max. dynamic load (low speed) | 180~220 N/mm² |
| Temperature range | -150°C to +400°C (dependent on material) |
| Friction coefficient (dry) | 0.06~0.15 |
| Max. speed (dry) | 1.0~2.0 m/s |
| PV limit (dry) | 2.0~3.0 N/mm²·m/s |
| Hardness | 180~250 HB (alloy layer) |
| Thermal conductivity | 35~50 W/(m·K) |
| Coefficient of thermal expansion | 11~14 × 10⁻⁶ /K |
◆ Application Areas
MG-850BM bearings are specifically designed for extreme operating conditions, including:
● Heavy Machinery & Construction Equipment – Excavators, loaders, bulldozers – high-load, low-speed pivot points.
● Steel & Metallurgy Industry – Rolling mills, continuous casting equipment, high-temperature conveyors.
● Mining & Material Handling – Crushers, conveyors, screening equipment – heavily contaminated environments.
● Oil & Gas – Pipeline support bearings, subsea equipment – where maintenance is difficult.
● Marine & Offshore – Rudder bearings, propeller shaft bushings – submerged and corrosive environments.
● High-Temperature Processes – Furnace conveyors, kiln cars, incinerators – operating at elevated temperatures.
◆ Available Forms
MG-850BM bearings are available in various configurations:
● Cylindrical bushings
● Flanged bushings
● Thrust washers
● Wear plates and slide blocks
● Custom sizes and configurations per customer specifications
