Techemer Composites (Guangdong) Co., Ltd.
Leading a New Era in Elastomeric Alloy Bearings, Bushings, and Seals, Setting Industry Standards.
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Introducing the TSTN Guide Bearing for Hydro Generators, engineered with advanced self-lubricating, water-lubricated materials to ensure optimal performance and durability.
Self-Lubricating Material: Utilizing INDRON® TSTN elastic-plastic alloy integrated with long-term lubricative particles, our bearings offer exceptional self-lubrication and water lubrication properties. This design effectively reduces starting torques, a common issue with traditional rubber turbine guide bearings, thereby protecting the shaft and bearing bushing.
No Pre-Start Water Injection Required: Our bearings eliminate the need for water injection before startup, allowing for transient operations without water or during water shortages, enhancing operational flexibility.
Consistent Performance: The excellent lubricating properties against friction ensure optimal operating clearances over extended periods, maintaining efficiency and reliability.
| Comparison of material performance of water-conductive bearings | TSTN | Rubber | hRBR | ||
| Properties | Unit | Test Method | Typical Value | ||
| Physical Property | |||||
| Density | g/cm3 | ASTM D792-08 | 1.17 | 1.15 | 1.11 |
| Mechanical Properties | |||||
| Tensile Strength | MPa | ASTM D638-08 | 40.3 | 12.0 | 20.3 |
| Elongation at Break | % | ASTM D638-08 | 199 | 400 | 421 |
| Tensile Modulus | MPa | ASTM D638-08 | 650 | <100 | — |
| Shore A | ° | ASTM D2240-03 | — | 65-75 | 93 |
| Shore D | ° | ASTM D2240-03 | 65 | — | — |
| Water Absorption (24h) | % | ASTM D570-98 | 0.5 | 0.5 | 0.5 |
| Water Absorption (Saturated) | % | ASTM D570-98 | 1.2 | 1 | 1.3 |
| Impact Strength (Notched IZOD) | J/M | ASTM D256-06a | 660【P】 | — | — |
| Compressive Strength(10%) | MPa | ASTM D695-08 | 23 | 0.5 | 3.8 |
| Modulus Compression | MPa | ASTM D695-08 | 430 | 103 | 220 |
| Permanent Skewness | % | ASTM D395-03 | — | 27 | 13 |
| Maximum Operating Pressure (dynamic) | MPa | 10 | 0.5 | 3 | |
| Maximum Operation Temperature (in water) | ℃ | 70 | 70 | 70 | |
| Maximum Operation Temperature (Dry) | ℃ | 110 | 100 | 110 | |
| Tribology Property | |||||
| DIN Abrasion (Dry) | mm3 | ASTM D5963-04 | 138 | 158 | 84 |
| Extreme PV (Water Lubrication) | MPa·m/s | GB 7948-87 | 101.3 | — | — |
| Extreme PV (Dry Friction) | MPa·m/s | GB 7948-87 | 1.69 | — | — |
| Coefficient of Dynamic Friction (Water) | GB 7948-87 | 0.01-0.05 | 0.08 | 0.02-0.06 | |
| Coefficient of Dynamic Friction (Dry) | ASTM D3702-94 | — | — | — | |
Under identical conditions, INDRON® elastoplastic alloy exhibits less wear compared to other common non-metal bearing materials. Some models even surpass imported materials, translating to longer service life, higher reliability, and reduced maintenance costs.
INDRON® guide bearing is performance comparable to Thordon; compatible with various assembly methods, including traditional installations by freezing and pressurizing, as well as reactive thermal polymerization Dx and cold sticking. Can use clean water for lubrication or withstand 150s dry start, depending on material grades.
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.