Why Choose Metal-Polymer Bearings?
Metal-polymer bearings, such as steel-backed, bronze-lined bushings, offer exceptional wear resistance and low friction in harsh conditions. Their self-lubricating design combines a robust steel backing, a sintered bronze layer, and a PTFE or POM lining for high performance with minimal maintenance. Key features include:
- High load capacity
- Self-lubricating or externally lubricated operation
- Low friction and extended lifespan due to PTFE/POM lining
- Customizable designs (grooves, holes, sizes from 2mm–500mm)
Metal-Polymer Bearings: The Ultimate Solution for High-Load Applications
Steel-Backed Bronze vs. PTFE vs. POM Bearings
How Metal-Polymer Bearings Work
Multi-Layer Structure Explained
Advanced Multi-Layer Construction
- Steel Backing Layer
- Provides high mechanical strength and structural integrity
- Ensures dimensional stability under extreme loads
- Sintered Bronze Interlayer
- Porous structure stores and releases lubricant over time
- Enhances heat dissipation and load distribution
- Polymer Overlay (PTFE/POM/PEEK)
- Self-lubricating properties eliminate need for frequent maintenance
- Ultra-low friction coefficient (as low as 0.02-0.10)
- Exceptional resistance to wear, corrosion and chemicals
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Technical Specifications at a Glance
Key Parameters Table
Property PTFE Version POM Version PEEK Version Max Temp 250°C 100°C 300°C Friction Coefficient 0.02-0.08 0.10-0.20 0.05-0.12 PV Limit 3.5 N/mm²·m/s 1.8 N/mm²·m/s 4.0 N/mm²·m/s Best For Chemical Cost-sensitive High-temp
Mining Equipment Bearing Solution: Hydraulic Cylinder Case Study
The Problem: Frequent Bearing Failures
Mining hydraulic cylinders face:
- 3-6 month lifespan with traditional bronze bushings
- Dust/slurry contamination leading to abrasive wear
- High impact loads causing deformation
- Costly downtime for lubrication and replacement
The Metal-Polymer Solution
Our steel-backed PTFE bearings deliver:
✅ 400% Longer Service Life
(From 3 months → 12+ months in field tests)
✅ Maintenance-Free Operation
- Self-lubricating PTFE layer eliminates grease points
- Withstands 250+ km of piston rod movement without wear
✅ Extreme Environment Performance
| Challenge | How Metal-Polymer Helps |
|---|---|
| Dust Contamination | Sealed polymer surface prevents particle embedding |
| High Impact Loads | Steel backing absorbs 2X shock vs. bronze |
| Corrosive Slurries | PTFE resists pH 1-14 chemicals |
Applications in Mining Equipment
- Hydraulic cylinder pivot bearings
- Shovel bucket linkages
- Conveyor system rollers
- Drill rig slew rings
Mining Equipment Bearing Solution: Hydraulic Cylinder Case Study
The Problem: Frequent Bearing Failures
Mining hydraulic cylinders face:
- 3-6 month lifespan with traditional bronze bushings
- Dust/slurry contamination leading to abrasive wear
- High impact loads causing deformation
- Costly downtime for lubrication and replacement
The Metal-Polymer Solution
Our steel-backed PTFE bearings deliver:
✅ 400% Longer Service Life
(From 3 months → 12+ months in field tests)
✅ Maintenance-Free Operation
- Self-lubricating PTFE layer eliminates grease points
- Withstands 250+ km of piston rod movement without wear
✅ Extreme Environment Performance
| Challenge | How Metal-Polymer Helps |
|---|---|
| Dust Contamination | Sealed polymer surface prevents particle embedding |
| High Impact Loads | Steel backing absorbs 2X shock vs. bronze |
| Corrosive Slurries | PTFE resists pH 1-14 chemicals |
Applications in Mining Equipment
- Hydraulic cylinder pivot bearings
- Shovel bucket linkages
- Conveyor system rollers
- Drill rig slew rings
Heavy-Duty Custom Metal-Polymer Bearing Solutions
We offer custom metal-polymer bearings in metric and inch sizes. Options include PTFE, POM, or composite linings for optimized friction, and lubrication features like oil grooves, reservoirs, or perforations. Available in stamped, machined, or molded designs, these bearings are widely used in various applications.
Self-Lubricating Bearings – Zero Maintenance, 100% Reliability
Custom Flanged Steel-Backed Bronze-Lined Metal-Polymer Bushings with Lubrication Grooves for Heavy-Duty Machinery
Engineered for extreme conditions, our steel-backed, bronze-lined metal-polymer bushings feature custom flanges and lubrication grooves to deliver high load capacity, wear resistance, and maintenance-free operation in heavy-duty applications.
Durable bushings available in standard and metric sizes. Ideal for: Mining Machinery (withstanding extreme conditions), Construction Equipment (excavators, loaders, cranes), Hydraulic Systems (corrosion-resistant), Automotive & Transportation (suspension, steering), and Precision Applications (robotics equipment). Upgrade to self-lubricating, long-lasting performance. Contact us for custom solutions.
Selecting Custom Metal Polymer Bearings
Custom Metal Polymer Bearings: Engineered Bearings Shipped in 48 Hours. Reduce Energy Costs. POM-lined, PTFE bushings, Steel-backed Bronze-lined.
Upgrade to High-Performance Bearings Today
Our metal-polymer bearings offer longevity, reduced maintenance, and peak efficiency in both standard and custom applications. We provide a range of solutions, including self-lubricating, PTFE-lined, POM, low-friction, high-load, wear-resistant, and sintered bronze bearings in metric sizes.
