JBM-40
Steel Bronze Powder with PTFE/Fibre
Features & Benefits
Developed for high duty, oil lubricated, hydraulic applications. Designed mainly for using under lubricated conditions and it performs excellent wear resistance and low static/dynamic friction coefficient. Suitable for dry running, low coefficient of friction, lower wear, good sliding characteristics. The transfer film created can protect the mating metal surfaces. Suitable for rotating and oscillating movement, high chemical resistance, low absorption of water and swelling. Improved friction and wear resistance over the common JBM-50 range under lubricated operation.
Structure
| Layer | Material | Thickness | Function |
|---|---|---|---|
| 1 | PTFE/Polymer fibres mixture | 0.01~0.03mm | Lead-free bearing layer provides an excellent initial transfer film, which effectively coats the mating surfaces of the bearing assembly, forming an oxide type solid lubricant film. |
| 2 | Sintered bronze powder | 0.20-0.35mm | Provides max. thermal conductivity away from the bearing surface, also serves as a reservoir for the PTFE mixture. |
| 3 | Steel backing | Base | Provides high load carrying capacity, excellent heat dissipation. |
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
max pv hydrodynamic
temperature limit
friction coefficient
max speed
- dry running 2 m/s
- hydrodynamic operation >2 m/s
thermal conductivity
coefficient of thermal expansion
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