Techemer Composites (Guangdong) Co., Ltd.
Leading a New Era in Elastomeric Alloy Bearings, Bushings, and Seals, Setting Industry Standards.
Add to Cart
INDRON® vertical pump bearings are engineered using PREM high-performance polymer composite materials, specifically designed for water-lubricated pumps in industrial, marine, and municipal applications. With low friction, high load capacity, and superior wear resistance, our bearings are ideal for vertical pumps, axial flow pumps, and mixed-flow pumps, ensuring reliable performance in demanding environments such as power plants, seawater desalination, and wastewater treatment.
Choosing the right vertical pump bearing is critical for long-term efficiency and reduced maintenance costs. Yanlong’s innovative PREM polymer composite bearings provide the following advantages:
Advanced PREM Material Technology: A next-generation polymer composite with high compressive strength and excellent durability.
Superior Load-Bearing Capacity: Dynamic surface pressure ≥12 MPa, ideal for high-load, high-speed pump applications.
Self-Lubricating & Water-Lubricated Design: Eliminates external lubrication, ensuring eco-friendly operation.
Dry Start Capability: Unlike traditional bearings, PREM bearings support short-term dry running up to 90 seconds, ideal for intermittent lubrication conditions.
Low Friction & Enhanced Lubrication: A unique split-groove design promotes fluid film formation at low speeds, reducing startup torque and dynamic-static friction.
Corrosion & Chemical Resistance: Withstands extreme environments, including seawater, acidic fluids (pH 5–10), and industrial process chemicals.
Longer Service Life: Outperforms traditional rubber and metal bearings, delivering twice the wear resistance in high-sediment conditions.
Lightweight & Easy Installation: Lower density than metal bearings, reducing weight and simplifying maintenance.
| Comparison of material performance of water-conductive bearings | TSTN | CFlon | PLAT | PREM | ||
| Properties | Unit | Test Method | Typical Value | |||
| Physical Property | ||||||
| Density | g/cm3 | ASTM D792-08 | 1.16 | 2.05 | 1.23 | 1.16 |
| Mechanical Properties | ||||||
| Tensile Strength | MPa | GB/T 1040.2 /ISO 527.2 | 40.3 | 22.9 | 30 | 30 |
| Elongation at Break | % | GB/T 1040.2/ISO 527.2 | 300 | 560 | 150 | 300 |
| Shore Hardness | ° | GB/T 2411/ISO 868 | 62~66D | 68D | 67~76D | 62~72D |
| Water Absorption Mass (Saturated) | % | GB/T 1690/ISO 1817 | 1.2 | 1.2 | 1 | 1.2 |
| Water Absorption Volume (1080h) | % | GB/ T1690/ISO 1817 | 1.4 | 1.4 | 0.9 | 1.4 |
| Charpy Impact Strength (Notched) | kJ/㎡ | GB/T 1043.1/ISO 179.1 | 110 | 100 | 120 | 110 |
| Compressive Strength | MPa | GB/T 1041/ISO 604 | 24.6 | 28.8 | 38 | 28 |
| Modulus Compression | MPa | GB/T 1041/ISO 604 | 423 | 828 | 600 | 60 |
| Compressive Set (24h) | % | GB/T 7759/ISO 815 | 25 | — | — | 20 |
| Maximum Load Capacity (Low-speed oscilating at 25% strain ) | MPa | 26 | 25 | 38 | 27 | |
| Maximum Load Capacity (continuous operation at 25% strain ) | MPa | 10 | 10 | 20 | 12 | |
| Maximum Operation Temperature (in water) | °C | 70 | 100 | 70 | 70 | |
| Maximum Operation Temperature (Dry) | °C | 110 | 260 | 110 | 110 | |
| Tribology Property | ||||||
| Relative Volume Wear (by Rotating Cylinder Drum) | mm3 | GB/T 25262/ISO 23794 | 138 | 200 | 136 | 110 |
| Limiting PV (Seawater Cycling, Linear Speed 5.13m/s) | MPa·m/s | GB 7948-87 | 101.3 | — | — | — |
| Limiting PV (Dry Frition, Linear Speed 5.13m/s) | MPa·m/s | GB 7948-87 | 1.69 | — | 2.3 | — |
| Coefficient of Dynamic Friction (Water) | GB 7948-87 | 0.08-0.16 | 0.05-0.15 | 0.08-0.16 | — | |
| Coefficient of Dynamic Friction (Dry) | ASTM D3702-94 | — | — | — | ||
Our company will take integrity, quality first, customer first and first-class service as its tenet.
| 01. Focus On Water Lubricated Bearings And Shaft Seals Since 2008 | 02. Offer Customized Bushes, Bearings And Seals Production |
| 03. Stabe Quality With Reasonable Price | 04. Fast Delivery With Online Service After Sale |
Our senior material scientists and mechanical engineering specialists have reached the international advanced level in material design, material innovations, material manufacturing and material applications. As a company focusing on the needs of customers and possessing years of experience and professional skills, we are assisting customers in solving their technical problems and providing extraordinary material technology solutions.