Techemer - Water-Lubricated Bearings & Shaft Seals Manufacturer Since 2008 — ISO-Certified | Fully Patented
Wear Resistance | Self-Lubricating | Stern Tube bushing Replacing Thordon SXL
INDRON® TSTN stern tube bushing is a high-performance water-lubricated bearing solution designed for long-term use in marine propulsion systems.
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
5.0
design customization
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Please fill out the form below to request a quote or to request more information about us. please be as detailed as possible in your message, and we will get back to you as soon as possible with a response. we're ready to start working on your new project, contact us now to get started.
Product Description
INDRON® TSTN stern tube bushing is a high-performance water-lubricated bearing solution designed for long-term use in marine propulsion systems. Engineered as a durable, non-metallic alternative to Thordon SXL, our bushing offers exceptional wear resistance, low friction under dry-start conditions, and excellent self-lubricating performance, making it ideal for both new vessels and retrofit applications.
Whether you operate a bulk carrier, tugboat, or offshore support vessel, this stern tube bushing delivers reliable shaft support without the need for oil lubrication — helping shipowners cut costs, comply with environmental regulations, and improve system uptime.
INDRON® Stern Tube Bushing Material
Our TSTN stern tube bushings are engineered for consistent performance under tough maritime conditions:
| 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 |
| Elongation at Break | % | ASTM D638-08 | 199 | 230 |
| Shore Type D Hardness | . | ASTM D638-08 | 65 | 66 |
| Compressive Strength(10%) | MPa | ASTM D695-08 | 23 | — |
| Modulus of Compression | MPa | ASTM D695-08 | 430 | 486 |
INDRON® TSTN marine rudder bearings are engineered to handle extreme pressure and friction conditions under water-lubricated environments.
INDRON® Rudder Bearing Features
●Water-Lubricated Operation: Functions under fully submerged conditions — no oil or grease required.
●Perfect Replacement for Thordon SXL: Fully compatible in size and performance with industry-standard components.
●Long Service Life: Advanced elastoplastic alloy with microcrystalline structure ensures longer lifespan than most composite materials.
●Excellent Dry Start Capability: Low friction and high pressure resistance allow safe intermittent lubrication.
●High Load Performance: Dynamic bearing surface pressure up to 10 MPa; PV values up to 100 MPa·m/s.
●Customizable Designs: Offered in integral, split, slotted, or layered configurations to suit a variety of stern tube systems.
Products Show
The INDRON® TSTN stern tube bearing is widely used in bulk carriers, tugboats, working vessels, and ocean energy systems. As a direct Thordon SXL alternative, it operates under harsh seawater conditions with minimal maintenance and long-lasting performance. Its proven durability and self-lubricating water-lubricated structure significantly reduce operational costs for shipowners, while enhancing rudder and stern tube reliability.
Where Stern Tube Bushings Matter
INDRON® Stern Tube Bushings have been successfully installed in bulk carriers, offshore vessels, workboats, and other commercial ships, especially where environmental restrictions prohibit oil-lubricated bearings.
Thanks to their self-lubricating design, these bushings reduce shaft wear and eliminate the risk of lubricant leakage into seawater. This makes them a preferred choice for shipowners replacing Thordon SXL bushings or upgrading older metal or rubber-lined bearings.
Typical use cases:
●Stern tube bearings for propulsion shafts
●Water-lubricated shaft line systems
●Retrofit solutions for greaseless shaft bearing systems
●High-load applications requiring dry-start tolerance
Our Strengths
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.
Our stern tube bushings have been field-proven in real-world marine environments. From full-scale OEM installations to retrofits in aging vessels, INDRON® TSTN bushings consistently deliver superior shaft alignment, reduced maintenance, and extended operational life.
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