Techemer - Water-Lubricated Bearings & Shaft Seals Manufacturer Since 2008
Techemer water-lubricated marine rudder and stern tube bearings engineered to replace Thordon bushings. Superior wear resistance, long service life and reliable performance for modern vessels.
Minimum Order Quantity: 1
Price: USD, CNY
Packaging Details: Wooden or heavy duty carton packaging
Delivery Time: 15working days
Payment Terms: T/T
Supply Ability: 10000
Place of Origin: China
Certification: GB/T19001-2016/ISO9001:2015, China Classification Society
Proven Performance in the Field Techemer self-lubricating bushings are extensively applied in marine rudder bearing and stern bearing systems on bulk carriers and working vessels. Proven through practical application, these bushings effectively replace traditional metal components in oil-lubricated ship systems. Specifically, the Techemer bushings demonstrate outstanding performance as marine rudder bearings, offering enhanced durability and reduced maintenance needs.
When compared to other non-metallic rudder and stern bearings used in water-lubricated systems, Techemer marine rudder bearings deliver a significantly longer service life. This not only improves the reliability of the marine rudder bearing system but also helps shipowners substantially lower operational and replacement costs.
Products Show
The images below show Techemer marine rudder bearings and stern tube bearings used in water-lubricated ship propulsion systems. These bearings support propeller shafts and rudder shafts in bulk carriers, workboats, and offshore vessels, providing stable shaft alignment and low-friction operation.
Manufactured from advanced polymer composite materials, Techemer marine stern tube bearings offer excellent wear resistance, long service life, and reliable performance in seawater environments, making them an efficient replacement for traditional metal or Thordon-type bushings in modern marine bearing systems.
Why Choose Techemer for Your Marine Rudder Bearing Needs
Our advantage lies in a strong team of senior material scientists and mechanical engineering experts who are at the forefront of international advancements in material design, innovation, manufacturing, and application. With years of industry experience and a customer-focused approach, we specialize in solving complex technical challenges and delivering high-performance material solutions—especially for critical applications like marine rudder bearing systems.
Marine Rudder Bearing Material Grade & Performances
Common guide bearing materials
|
Comparison of material performance of water-conductive bearings |
INDRON TSTN |
THORON SXL |
||
|
Properties |
Unit |
Test Method |
Typical Value |
|
|
Physical Property |
||||
|
Density |
g/cm3 |
ASTM D792-08 |
1.17 |
1.16 |
|
Mechanical Properties |
||||
|
Tensile Strength |
MPa |
ASTM D638-08 |
40.3 |
44.0 |
|
Elongation at Break |
% |
ASTM D638-08 |
199 |
230 |
|
Tensile Modulus |
MPa |
ASTM D638-08 |
650 |
650 |
|
Shore A |
° |
ASTM D2240-03 |
— |
— |
|
Shore D |
° |
ASTM D2240-03 |
65 |
66 |
|
Water Absorption (24h) |
% |
ASTM D570-98 |
0.5 |
0.5 |
|
Water Absorption (Saturated) |
% |
ASTM D570-98 |
1.2 |
1.3 |
|
Impact Strength (Notched IZOD) |
J/M |
ASTM D256-06a |
660【P】 |
320 |
|
Compressive Strength(10%) |
MPa |
ASTM D695-08 |
23 |
— |
|
Modulus Compression |
MPa |
ASTM D695-08 |
430 |
486 |
|
Permanent Skewness |
% |
ASTM D395-03 |
— |
— |
|
Maximum Operating Pressure (dynamic) |
MPa |
|
10 |
10 |
|
Maximum Operation Temperature (in water) |
℃ |
|
70 |
60 |
|
Maximum Operation Temperature (Dry) |
℃ |
|
110 |
100 |
|
Tribology Property |
||||
|
DIN Abrasion (Dry) |
mm3 |
ASTM D5963-04 |
138 |
195 |
|
Extreme PV (Water Lubrication) |
MPa·m/s |
GB 7948-87 |
101.3 |
— |
|
Extreme PV (Dry Friction) |
MPa·m/s |
GB 7948-87 |
1.69 |
1.02 |
|
Coefficient of Dynamic Friction (Water) |
|
GB 7948-87 |
0.01-0.05 |
0.01-0.051 |
|
Coefficient of Dynamic Friction (Dry) |
|
ASTM D3702-94 |
— |
0.05 |
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, Techemer elastoplastic alloy has less wear than other common nonmetal bearing materials, and some of its models are even better than imported materials,which means Techemer bearing has longer service life, higher reliability and lower maintenance cost.
Proven marine performance for stern and rudder systems.
Techemer water-lubricated bushings have been widely applied on bulk carriers and working vessels, effectively replacing traditional metal bearings and Thordon SXL bushings in stern tube and rudder applications with superior durability.
Outstanding wear resistance and extended service life.
Engineered from advanced elastomeric polymer alloy, these bearings significantly outperform many non-metallic options in water-lubricated systems, exhibiting longer lifespan, higher reliability, and reduced maintenance costs for marine bearing systems.
Better reliability and lower ownership cost.
Practical applications show that these bearings deliver improved performance in harsh seawater environments, helping shipowners reduce downtime and total cost of ownership while meeting modern marine requirements.
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