Techemer - Water-Lubricated Bearings & Shaft Seals Manufacturer Since 2008 — ISO-Certified | Fully Patented
TSTN INDRON® – PREM For Vertical Pumps
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.
Minimum Order Quantity: 1
Price: USD, CNY
Packaging Details: Cartoon
Delivery Time: 15working days
Payment Terms: T/T
Supply Ability: 10000
Place of Origin: China
Certification: GB/T19001-2016/ISO9001:2015, China Classification Society
5.0
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Product Description
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.
Key Advantages
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.
Common guide bearing materials
|
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 |
— |
— |
— |
|
Material Performances
GB/T 9867, ISO 4649 and ASTM D5963 Relative Volume Wears Comparison (mm³)
Partial data from THORDON product description
Under the same conditions, INDRON® elastoplastic alloy has less wear than other common nonmetal bearing materials, and some of its models are even better than imported materials,which means INDRON® bearing has longer service life, higher reliability and lower maintenance cost.
What bearing materials are more suitable as the materials used for water pump guide bearings, Babbitt alloy, rubber, ceramics or new polymer materials? It is advisable to take account of the lubrication requirements, use environment and maintenance cycle of the equipment.
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