Metal-Polymer Composite Bearings
JBM-50HP
Steel Bronze Powder with PTFE/Fibre
PRODUCT OVERVIEW
Features & Benefits
The JBM-50HP is engineered specifically for high-load, high-speed applications operating under lubricated conditions. Formulated with a specialized resin system, it delivers exceptional wear resistance and a reduced coefficient of friction, supporting high PV values. This material is capable of operating at speeds up to 5 m/s and handling PV factors up to 60 N/mm²*m/s.
MATERIAL COMPOSITION 
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 layer mixture. |
| 3 | Low-carbon steel | Base | Delivers exceptionally high load-carrying capacity and excellent heat dissipation. |
SPECIFICATIONS
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
60 N/mm²*m/s
temperature limit
-195℃ ~ +280℃
friction coefficient
0.03~0.20
max speed
- dry running 2 m/s
- hydrodynamic operation >5 m/s
thermal conductivity
42 W(m*K)⁻¹
coefficient of thermal expansion
11*10⁻⁶*K⁻¹
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