JBM-11
Bronze Backed with Bronze Powder PTFE/Fibre
Features & Benefits
Optimized for dry running environments, featuring a low coefficient of friction, minimal wear, and superior sliding properties. The resulting transfer film effectively protects mating metal surfaces. Well-suited for both rotary and oscillating motion, this material exhibits exceptional chemical resistance, low water absorption, and resistance to swelling. It also maintains excellent performance in lubricated applications. Notably, the bronze backing offers enhanced corrosion resistance compared to the JBM-50 series.
Structure
| Layer | Material | Thickness | Function |
|---|---|---|---|
| 1 | PTFE/fibre mixture | 0.01~0.03mm | Provides an excellent initial transfer film, effectively coating the mating surfaces of the bearing assembly to form an oxide-type solid lubricant film. |
| 2 | Sintered bronze powder | 0.20-0.35mm | Ensures maximum thermal conductivity away from the bearing surface and serves as a reservoir for the PTFE/Fibre mixture. |
| 3 | Bronze backing | Base | Delivers exceptionally high load-carrying capacity, superior heat dissipation, and excellent corrosion resistance. |
Technical Data
max load
- static 250 N/mm²
- very low speed 140 N/mm²
- rotating oscillating 60 N/mm²
max pv dry running
- short term operation 3.6 N/mm²*m/s
- continuous operation 1.8 N/mm²*m/s
temperature limit
friction coefficient
max speed
- dry running 2 m/s
- hydrodynamic operation >2 m/s
thermal conductivity
coefficient of thermal expansion
Typical Applications
Iron & Steel
Bushings for roller grooves in continuous casting machines.
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Hydraulics & Valves
Cement grouting pumps, screw conveyors, and other heavy-duty equipment.
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Oil & Gas
Ideal for applications where oil lubrication is inefficient or impossible, and where machinery must withstand continuous, long-term operation.
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