Techemer - Water-Lubricated Bearings & Shaft Seals Manufacturer Since 2008 — ISO-Certified | Fully Patented
INDRON® hRBR (Grade of super wear resistance)
INDRON® hRBR is an ultra-wear-resistant elastoplastic alloy specially developed for water lubricated bearing systems. It performs exceptionally well in environments with high sediment or particulate content, effectively preventing continuous damage to friction pairs and significantly extending bearing service life.
The surface hardness of INDRON®hRBR is relatively low. Giving way to the burial of abrasive grains and transferring them from the friction pair to the water tank to discharge them can guarantee the most wear-resistant grade in INDRON® elastoplastic alloy. The performance remains excellent in the medium of high sediment content.
Key Advantages :
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Material Grade
| Material | HRBR | ||
| Properties | Unit | Test Method | Typical Value |
| Physical Property | |||
| Density | g/cm³ | GB/T 1033.1 /ISO 1183.1 | 1.1 |
| Mechanical Properties | |||
| Tensile Strength | MPa | GB/T 1040.2 /ISO 527.2 | 20.3 |
| Elongation at Break | % | GB/T 1040.2/ISO 527.2 | 421 |
| Shore Type D Hardness | ° | GB/T 2411/ISO 868 | 33~40 |
| Water Absorption Mass (Saturated) | % | GB/T 1690/ISO 1817 | 1.2 |
| Water Absorption Volume (1080h) | % | GB/ T1690/ISO 1817 | 1.7 |
| Compressive Strength | MPa | GB/T 1041/ISO 604 | 3.8 |
| Modulus of Compression | MPa | GB/T 1041/ISO 604 | 60 |
| Permanent Compression Set (24h) | % | GB/T 7759/ISO 815 | 13 |
| Maximum Load Capacity (Low-speed oscilating at 25% strain ) | MPa | 5 | |
| Maximum Load Capacity (continuous operation at 25% strain ) | MPa | 3 | |
| Maximum Operation Temperature (in water) | °C | 70 | |
| Maximum Operation Temperature (Dry) | °C | 110 | |
| Friction Properties | |||
| Relative Volume Wear (by Rotating Cylinder Drum) | mm³ | GB/T 25262/ISO 23794 | 84 |
| Limiting PV (Dry Friction, Linear Speed 5.13m/s) | MPa·m/s | GB 7948-87 | 1 |
| Coefficient of Dynamic Friction (Water) | GB 7948-87 | 0.08-0.16 | |
Recommended Applications
Suitable for water pumps with high sediment levels, guide bearings in hydropower stations, dredging equipment in ports, ship propulsion systems, and water-lubricated transport devices in metallurgy and mining industries
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