Our INDRON® have been widely adopted in bulk carriers and working ships, successfully replacing metal stern bearings and rudder bearings in oil-lubricated systems. Compared to other non-metal stern and rudder bearings in water-lubricated systems, INDRON® bearings offer a longer service life, helping ship owners significantly reduce costs and enhance the reliability of stern and rudder bearing systems.
INDRON® Fore Stern Tube Marine Bearings are engineered with an advanced elastomeric polymer alloy, offering a superior alternative to traditional Thordon SXL bearings. Designed to meet the rigorous demands of the marine industry, these bearings provide exceptional performance, durability, and environmental benefits.
Water Lubrication: Utilizing natural water as the lubrication medium eliminates the risk of oil or grease leakage, thereby preventing water source pollution.
Self-Lubricating and Maintenance-Free: The elastomeric polymer alloy incorporates long-lasting self-lubricating microcrystals and extreme pressure particles, ensuring low friction and high wear resistance. This design supports dry starts and reduces the need for regular maintenance.
Durable and Resilient: Capable of withstanding impact loads and edge loads, our bearings exhibit excellent wear resistance and can embed abrasive particles, preventing shaft surface damage.
Customized Solutions: We offer tailored material selection and bearing designs based on specific equipment characteristics and operating conditions, ensuring optimal performance for each application.
Certified Quality: Our products have received factory approval from the China Classification Society (CCS) and are ISO9001:2015 certified, reflecting our commitment to meeting and exceeding customer expectations.
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/㎡ | 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 |
Our laboratory is equipped with advanced material performance testing and analysis instruments, allowing us to strictly control every detail of product design and production, ensuring superior product quality. Indron® bearings, seals, and gaskets are more durable than ordinary bearing materials under various conditions, including dry friction, water lubrication (clean water or water containing sand and mud), non-lubrication, grease lubrication, and even under impact load conditions.
GB/T 9867, ISO 4649 and ASTM D5963 Relative Volume Wears Comparison Among (mm³)
Part of the data is abstracted from Thordon's Product Specifications
ASTM D5963 (Comparison of abrasion) (㎥)
Partial data from THORDON product description
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RAILKO NF22 | |||||||||||||||||||||||||||||||||||||||||||||||
ORKOT TLG-P/S | |||||||||||||||||||||||||||||||||||||||||||||||
ORKOT TXM-M | |||||||||||||||||||||||||||||||||||||||||||||||
TENMAT T14 | |||||||||||||||||||||||||||||||||||||||||||||||
TENMAT T814 | |||||||||||||||||||||||||||||||||||||||||||||||
Polyformaldehyde(POM) DELRIN AF | |||||||||||||||||||||||||||||||||||||||||||||||
THORDON THORPLAS | |||||||||||||||||||||||||||||||||||||||||||||||
PTFE | |||||||||||||||||||||||||||||||||||||||||||||||
INDRON PLAT | |||||||||||||||||||||||||||||||||||||||||||||||
THORDON HPSXL | |||||||||||||||||||||||||||||||||||||||||||||||
UHMWHDPE | |||||||||||||||||||||||||||||||||||||||||||||||
THORDON SXL | |||||||||||||||||||||||||||||||||||||||||||||||
DIN | |||||||||||||||||||||||||||||||||||||||||||||||
INDRON TSTN | |||||||||||||||||||||||||||||||||||||||||||||||
THORDON XL | |||||||||||||||||||||||||||||||||||||||||||||||
INDRON TITN | |||||||||||||||||||||||||||||||||||||||||||||||
INDRON HRBR | |||||||||||||||||||||||||||||||||||||||||||||||
O | 50 | 100 | 150 | 200 | 250 | 300 | 350 | 400 | 450 |
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.
INDRON® elastoplastic alloy bearings are ideal for various marine applications due to their wear resistance, corrosion resistance, impact resistance, and suitability for water lubrication. They are extensively used in:
Cruises
Deck machinery
Yachts
Sand carriers
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.