Our customized marine bearings are designed for various conditions, offering excellent wear and corrosion resistance. With water-lubricated technology, they are oilless, self-lubricating, and maintenance-free, ideal for seawater and muddy environments. High load capacity and long service life ensure reliability for propeller shafts, rudder stocks, and other marine applications. OEM services are available for branding and packaging customization, and all products are ISO certified, making them the perfect solution for shipbuilding and offshore operations.
INDRON® Material Grade
| Bearing(lining) |
INDRON® TSTN |
INDRON® HRBR |
INDRON® HAWF |
INDRON® UNIV |
INDRON® PLAT |
| Material |
Synthetic Engineering Elastomers |
Synthetic Engineering Elastomers |
SyntheticEngineering Elastomers |
Synthetic Engineering Elastomers |
Synthetic Engineering Elastomers |
| Recommended |
|
|
|
|
| Workplace |
Guide Bearings & Seals |
Guide Bearings& Seals |
Guide Bearings & Seals |
Guide van, connecting rod bushing |
Guide vane, connecting rod bushing |
| Temperature Limit |
70ºC |
70ºC |
70ºC |
70ºC |
70ºC |
| Dry Rub |
Yes |
low speed |
low speed |
Yes |
Yes |
| Acid Resistance |
limit |
limit |
limit |
limit |
limit |
| Alkaline Resistant |
limit |
limit |
limit |
limit |
limit |
| Hydrocarbon Suitability |
Yes |
Yes |
Yes |
Yes |
Yes |
| Abrasion Resistance |
good |
excellent |
excellent |
good |
good |
| Friction Pair(bushing) |
bronze |
HRC40 |
HRC40 |
HRC40 |
HRC40 |
| |
Stainless |
recommend |
recommend |
recommend |
recommend |
| Typical Application |
water, sea water |
water, sea water |
water, sea water |
water, sea water |
water, sea water |
| |
Most fluids(pH 5-10) |
Most fluids(pH5-10) |
Most fluids(pH5-10) |
Most fluids(pH 5-10) |
Most fluids(pH5-10) |
| Note |
Lowest coefficient of friction,suitable for dry running applications, good wear resistance |
Use silt water under moderate grinding conditions |
Use ofsilt-containing water under high grinding conditions. Contains abrasion resistant |
high load capacity |
high load capacity |
Property List of INDRON® Elastic-plastic Alloy
| |
TSTN |
CFlon |
PLAT |
hRBR |
| Properties |
Unit |
Test Method |
Typical Value |
| Physical Property |
| Density |
g/cm3 |
GB/T 1033.1 /ISO 1183.1 |
1.16 |
2.05 |
1.23 |
1.1 |
| Mechanical Properties |
| Tensile Strength |
MPa |
GB/T 1040.2 /ISO 527.2 |
40.3 |
22.9 |
30 |
20.3 |
| Elongation at Break |
% |
GB/T 1040.2/ISO 527.2 |
300 |
560 |
150 |
421 |
| Shore Hardness |
° |
GB/T 2411/ISO 868 |
62~66D |
68D |
67~76D |
85~95A |
| 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 |
1.7 |
| Charpy Impact Strength (Notched) |
kJ/m2 |
GB/T 1043.1/ISO 179.1 |
110 |
100 |
120 |
- |
| Compressive Strength |
MPa |
GB/T 1041/ISO 604 |
24.6 |
28.8 |
38 |
3.8 |
| Modulus Compression |
MPa |
GB/T 1041/ISO 604 |
423 |
828 |
600 |
60 |
| Compressive Set (24h) |
% |
GB/T 7759/ISO 815 |
25 |
- |
- |
13 |
| Maximum Load Capacity (Low-speed oscilating at 25% strain ) |
MPa |
|
26 |
25 |
38 |
5 |
| Maximum Load Capacity (continuous operation at 25% strain ) |
MPa |
|
10 |
10 |
20 |
3 |
| 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 |
84 |
| 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 |
1 |
| Coefficient of Dynamic Friction (Water) |
|
GB 7948-87 |
0.08-0.16 |
0.05-0.15 |
0.08-0.16 |
0.08-0.16 |
| |
INDRON® elastoplastic alloy exhibits less wear than other common non-metallic bearing materials under the same conditions. They are an excellent alternative to Thordon SXL, offering longer service life, higher reliability, and lower maintenance costs. Indron® bearings are certified by the China Classification Society (CCS) and are more durable than conventional bearing materials under various conditions, including dry friction, water lubrication (clean water or water with sand and mud), non-lubrication, grease lubrication, and impact loads.
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