IMPERIAL & METRIC SIZE
Low friction bearings, Sleeve bushings – Metal polymer bearing supplier
Bushing operating temperature range: -200°C to 280°C. Custom metric bearings and imperial bushings available. Standard-sized cylindrical bushes offered.
High-quality PTFE sleeve: long-lasting, maintenance-free, self-lubricating, and wear-resistant.




Custom Bearing Solutions.
bearings equivalent; competitively priced vs sleeve bushing.
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Metal-Polymer Composite Bushing Material: Steel Backing + Porous Bronze Sinter + PTFE + Fillers
- SLEEVE BUSHING STRUCTURE
- Sliding layer options include Carbon Steel Backing or Stainless Steel 304/316 bushes.
- Porous Bronze Sinter
- PTFE + Fillers
Grease lubricated bushing
The sleeve bushing guarantees high quality to meet your requirements.
Dry Bushing
Low minimum order value and quantity, quick delivery.
Self-Lubricating Multilayer Composite Bushing Supplier.
- Copper plate + copper powder + (PTFE + filler)
- Stainless steel + copper powder + (PTFE + filler)
- Carbon Steel + Copper Powder + (PTFE + Filler)
Life Factors & Sleeve Bushing Application
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PV Value: The PV value is a key factor in determining the service life of sleeve bushings. To extend their lifespan, the PV value must be lowered.
- Ambient Temperature: Higher operating temperatures result in a reduced product lifespan.
- Quality of the Mating Surface: The service life of sleeve bushings can be significantly extended if the mating axis is made of alloy steel, hard chrome plated, and has a surface roughness of Ra=0.4~0.63.
- Application: Sleeve bushings are used in printing, weaving, tobacco, gymnastics machinery, and shock absorbers. By combining metals and polymers, these products achieve a lower friction coefficient while enhancing anti-abrasion and self-lubrication capabilities. Additionally, the steel backing is coated with an erosion-resistant layer. Steel is backed with copper-plated steel, which has porous bronze sintered on it, embedding (PTFE+Pb) into the bronze’s bores.
Metal-Polymer Sleeve Bearings: Low Friction Bushings for Industrial Efficiency
Meta Description: Discover how metal-polymer sleeve bearings reduce friction, enhance durability, and lower maintenance in industrial machinery. Explore their benefits and applications today.
Introduction
In the fast-paced industrial world, minimizing downtime and maximizing efficiency are paramount. Sleeve bearings, particularly low friction bushings, play a pivotal role in achieving these goals. Among these, metal-polymer bearings stand out for their innovative design and superior performance. This article explores whybearings are becoming the go-to solution for industries seeking reliability, cost savings, and enhanced operational efficiency.
What Are Sleeve Bearings and Low Friction Bushings?
Sleeve bearings, or plain bearings, are simple yet critical components designed to reduce friction between moving parts. Unlike rolling-element bearings, they operate through sliding motion, making them ideal for applications requiring smooth, quiet operation. Low friction bushings, a subtype of sleeve bearings, are engineered with materials like self-lubricating polymers or composites to minimize wear and energy loss. Commonly used in automotive systems, hydraulic machinery, and conveyor systems, these bushings enhance performance while reducing maintenance needs.
Introducing Metal-Polymer Bearings
bearings combine a robust metal backing (steel or bronze) with a porous polymer layer infused with solid lubricants like PTFE or graphite. This unique construction delivers the strength of metal with the friction-reducing properties of advanced polymers, making them ideal for high-stress industrial environments.
Advantages of Metal-Polymer Bearings
1. High Load Capacity & Exceptional Low Friction
bearings excel in heavy-load applications. The metal backing provides structural integrity, while the polymer layer acts as a cushion, distributing stress evenly. Embedded solid lubricants reduce friction coefficients, enabling smooth operation even at high speeds—perfect for machinery like presses or agricultural equipment.
2. Self-Lubricating & Maintenance-Free
Say goodbye to frequent lubrication schedules. The polymer matrix in bearings continuously releases lubricant, eliminating the need for external greasing. This feature is invaluable in hard-to-reach areas or harsh environments (e.g., food processing or marine applications), reducing downtime and operational costs.
3. Corrosion & Wear Resistance
The polymer layer shields the metal core from moisture, chemicals, and abrasive particles, preventing rust and degradation. Combined with the wear-resistant lubricant, bearings offer extended service life, even in corrosive settings like chemical plants or wastewater treatment facilities.
4. Versatility Across Industries
From automotive suspensions to robotics and renewable energy systems, bearings adapt seamlessly. Their ability to perform under varying temperatures and loads makes them suitable for diverse sectors, including aerospace, construction, and packaging.
5. Cost-Effective Long-Term Solution
While initial costs may be higher than traditional bearings, durability and minimal maintenance requirements lead to significant long-term savings. Reduced replacements and downtime translate to improved ROI for industrial operations.
Applications of Bearings in Industry
- Automotive: Suspension systems, steering components.
- Hydraulics: Cylinders, pumps, and valves.
- Heavy Machinery: Conveyors, excavators, and presses.
- Renewable Energy: Wind turbine pitch controls and solar tracking systems.
- Food & Pharma: Hygienic, lubrication-free environments.
Conclusion
metal-polymer sleeve bearings redefine reliability in industrial applications. By combining low friction, self-lubrication, and robust corrosion resistance, they address the pain points of traditional bearings while cutting lifecycle costs. Whether upgrading existing machinery or designing new systems, bushings offer a future-proof solution for industries prioritizing efficiency and sustainability.
Ready to optimize your machinery’s performance? Explore metal-polymer bearings today and experience unmatched durability and efficiency.
Keywords: sleeve bearing, low friction bushings, metal-polymer bearings, industrial bearings, self-lubricating bearings, maintenance-free bushings, corrosion-resistant bearings.
Sleeve Bushing Technical Data
Performance | Date | |
Load capacity P | Static load | 250N/mm² |
Load capacity P | Dynamic load | 140N/mm² |
Load capacity P | Oscoillation Load | 60N/mm² |
Max line speed V | Dry friction | 2.5m/s |
Max line speed V | Oil lubrication | >5m/s |
PV value limit | Dry friction | 1.8N/mm²· m/s |
PV value limit | Oil lubrication | 3.6N/mm²· m/s |
Friction coef μ | Dry friction | 0.08~0.20 |
PTFE Bushing Technical Data
Performance | Date | |
Friction coef μ | Oil lubrication | 0.02~0.08 |
Mating Axis | Hardness | >220 HB |
Mating Axis | Roughness | Ra=0.4~1.25 |
Working temperature | -200~+280℃ | |
Thermal conductivity | 40W/(m·k) | |
Coefficient of linear expansion | 11×10-6K-1 | |
Outside surface Plating | copper/tin | |
We can also develop according to customers special request while out of this table. |