Let’s learn about Ringfeder Flexible Couplings TNB BHD with Dai Hong Phat, through the following article!
1. About Dai Hong Phat Corp – Ringfeder Germany
– Dai Hong Phat Corp is the official authorized representative of Ringfeder Germany in Vietnam (Ringfeder Vietnam), Laos, Cambodia, Philippines and Bangladesh. We provide genuine transmission shaft coupling solutions that meet international standards, helping to optimize the performance and durability of machinery systems.
– Ringfeder Germany – the world’s leading brand in transmission and shock absorber solutions, with over 100 years of history of creation and innovation. Founded in 1922, with the first product “friction springs“, Ringfeder has become a global symbol of prestige for quality and reliability.
– Ringfeder Flexible Couplings TNB BHD products supplied by Dai Hong Phat are 100% genuine imported, with full CO/CQ, meeting international quality standards.
Certificate of Dai Hong Phat Corp is an authorized representative of Ringfeder Germany in Vietnam
2. Characteristics of Flexible Couplings TNB BHD
– Manufacturer brand: Ringfeder/Germany
– Three-part design with VKR buffer – Retractable claw ring.
– Flexible torsion coupling, compensating for angular, radial, and axial misalignments.
– Buffer rings can be replaced radially without the need to move the connected machines.
– Elastomer buffer rings available in various hardness levels.
– Suitable for temperatures from -30°C to +100°C.
– Outer diameter up to 900 mm.
– Maximum bore diameter: 400 mm.
– Torque up to T Kn = 260,000 Nm / T Kmax = 780,000 Nm.
– Maximum speed up to n max = 4,100 rpm.
See more: Ringfeder Rubber Elements TNB Specifications
See related TNB couplings: Ringfeder Flexible Couplings TNB BH
| FOR ANY INQUIRIES OR QUOTATION REQUESTS, PLEASE CONTACT: SALES DEPARTMENT HOTLINE: (+84) 0906 955 057 – EMAIL: INFO@DHP-CORP.COM.VN |
3. Application of Flexible Couplings TNB BHD
The Ringfeder TNB BHD coupling (Flexible Couplings TNB BHD) is used worldwide in heavy-duty industrial applications that demand high technical standards for durability and superior performance – ensuring optimal operation for machinery and plants. The elastomer jaw couplings TNB BHD is preferred in steel mills, steel rolling mills, and cement plants, as well as in mining and construction machinery, such as excavators, shredders, and tunnel boring machines, as well as in offshore technology.

Elastomer Jaw Couplings Ringfeder TNB at Dai Hong Phat
See article: Comparison of 5 types of mechanical shaft couplings in industry
4. Technical Ringfeder Flexible Couplings TNB BHD
| Catalogue Ringfeder TNB BHD Coupling |
Installation Ringfeder TNB BHD Coupling |
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| Coupling Model |
Identifier | TKN | nmax | Dimenssions [mm] | Gwub [kg] |
||||
| Nm | 1/min | d1kmax | d2kmax | D1 | D2 | L | |||
| TNB BHD300 | WB0230-A | 6000 | 3300 | 135 | 110 | 300 | 210 | 384 | 104 |
| WB0230-B | 6000 | 3300 | 135 | 135 | 300 | 210 | 410 | 120 | |
| TNB BHD350 | WB0235-A | 10500 | 2800 | 160 | 120 | 350 | 240 | 424 | 142 |
| WB0235-B | 10500 | 2800 | 160 | 170 | 350 | 240 | 475 | 191 | |
| TNB BHD400 | WB0240-A | 16000 | 2450 | 180 | 140 | 400 | 270 | 459 | 206 |
| WB0240-B | 16000 | 2450 | 180 | 190 | 400 | 270 | 508 | 265 | |
| TNB BHD450 | WB0245-A | 21000 | 2200 | 200 | 170 | 450 | 300 | 489 | 271 |
| WB0245-B | 21000 | 2200 | 200 | 205 | 450 | 300 | 528 | 322 | |
| TNB BHD500 | WB0250-A | 28500 | 2000 | 220 | 180 | 500 | 330 | 547.5 | 373 |
| WB0250-B | 28500 | 2000 | 220 | 225 | 500 | 330 | 598.5 | 451 | |
| TNB BHD550 | WB0255-A | 45000 | 1800 | 240 | 200 | 550 | 350 | 567.5 | 442 |
| WB0255-B | 45000 | 1800 | 240 | 240 | 550 | 350 | 618.5 | 534 | |
| TNB BHD600 | WB0260-A | 55000 | 1650 | 250 | 235 | 600 | 375 | 604 | 578 |
| WB0260-B | 55000 | 1650 | 250 | 265 | 600 | 375 | 645 | 672 | |
| TNB BHD650 | WB0265-A | 65000 | 1500 | 260 | 250 | 650 | 400 | 637.5 | 695 |
| WB0265-B | 65000 | 1500 | 260 | 265 | 650 | 400 | 678.5 | 767 | |
| TNB BHD700 | WB0270-A | 90000 | 1400 | 300 | 260 | 700 | 450 | 727 | 941 |
| WB0270-B | 90000 | 1400 | 300 | 310 | 700 | 450 | 774 | 1105 | |
| TNB BHD800 | WB0280-A | 120000 | 1200 | 330 | 320 | 800 | 490 | 797 | 1316 |
| WB0280-B | 120000 | 1200 | 330 | 340 | 800 | 490 | 824 | 1426 | |
| TNB BHD900 | WB0290-A | 180000 | 1100 | 360 | 340 | 900 | 540 | 853 | 1695 |
| WB0290-B | 180000 | 1100 | 360 | 400 | 900 | 540 | 914 | 2042 | |
5. Why choose Dai Hong Phat Corp?
– 100% genuine products imported directly from Ringfeder Germany.
– Protect customers from counterfeit goods and always provide full CO/CQ documents.
– Goods in stock, fast delivery nationwide 24/7.
– Free technical consultation and support for drawings, catalogs.
– Refined processing workshop to meet individual requirements.
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– Hotline: +84906.955.057 | – Email: info@dhp-corp.com.vn
– Website: https://en.daihongphat.asia/ – https://khopnoitruc.com/ – https://ringfeder.com.vn/



















