Let’s learn about KTR All-Steel Gear Couplings Gearex FA with Dai Hong Phat, through the following article!
1. About Dai Hong Phat Corp- KTR Germany
– Dai Hong Phat Corp is the official authorized representative of KTR Germany in Vietnam (KTR Vietnam). We provide genuine transmission shaft coupling solutions, meeting international standards, helping to optimize the performance and durability of machinery systems.
– KTR was established in 1959 in Germany. KTR is an abbreviation of
K – Kupplung (Coupling) | T – Technology (Technology) | R – Rheine (Region)
– KTR products: Rotex shaft coupling, Clampex shaft locking joint, hydraulic brake, …
– KTR Gear Couplings GEARex FA products supplied by Dai Hong Phat are 100% genuine imported, with full CO/CQ, meeting international quality standards.

Certificate of Dai Hong Phat as Authorized Distributor of KTR Germany in Vietnam
View more: Other KTR Gear Couplings
2. Charecteristics of KTR Gear Couplings Gearex FA
– Manufacturer brand: KTR/Germany.
– The steel-encased gear wheel coupling, GEARex, is robustly designed with gears entirely encased in steel, featuring a very short shaft distance.
– The sleeves of the steel-encased gear coupling can be tightly fastened along the shaft direction using positioning screws or couplings. Adjusting the sleeve material and center allows for high torque transmission.
– Advantages:
+ Double cardanic steel gear coupling
+ High torque up to 135,000 Nm with small dimensions
+ Both centers rotate inward, optimizing energy transfer with a short hub design
+ Meets ATEX and AGMA standards
– Based on the famous crowned tooth gear principle, it avoids edge pressure along the shaft with angular and radial displacements. Additionally, permanent lubrication creates favorable friction conditions for the shaft with virtually non-abrasive operation, combined with high expected service life of the coupling.
– To ensure regular lubrication and monitoring upon installation, there are two hydraulic connections opposite each other on each coupling jacket, thus four connections staggered 90° with the complete GEARex gear coupling.
– The interior space of the coupling is sealed with O-rings (NBR 70 ShA). The splines must be sealed to prevent lubricant from leaking out during assembly.

View more product: Gear Couplings KTR Bowex
| FOR ANY INQUIRIES OR QUOTATION REQUESTS, PLEASE CONTACT: SALES DEPARTMENT HOTLINE: +84 906 955 057 – EMAIL: INFO@DHP-CORP.COM.VN |
3. Applications of KTR Gear Couplings Gearex FA
The gearex all-steel gear shaft couplings are applied in mechanical engineering, powering pumps, compressors, steel plants, cement plants, crushers, and more.
4. Technical specifications of the Gearex All-Steel Gear Couplings
| Catalogue Khớp nối răng vỏ thép KTR Gearex |
Hướng dẫn lắp đặt Khớp nối răng vỏ thép KTR Gearex |
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| Dimensions | |||||||||||||
| Size | Pilot bore | Max. finish bore | Dimensions [mm] | Torque | |||||||||
| d1, d2 | l1, l2 | Hub lengthened max. l1, l2 |
EFA | LFA | L3 | D | DA1 | DA2 | F | d3 | TKN | ||
| Gearex 10 | 26 | 50 | 43 | 105 | 3 | 89 | 55 | 67 | 111 | 83 | 74 | 52 | 930 |
| Gearex 15 | 26 | 64 | 50 | 115 | 3 | 103 | 59 | 87 | 142 | 106 | 84 | 68 | 2000 |
| Gearex 20 | 31 | 80 | 62 | 130 | 3 | 127 | 79 | 108 | 174 | 129 | 104 | 85 | 3500 |
| Gearex 25 | 38 | 98 | 76 | 150 | 5 | 157 | 93 | 130 | 213 | 157 | 123 | 110 | 6500 |
| Gearex 30 | 44.5 | 112 | 90 | 170 | 5 | 185 | 109 | 153 | 240 | 181 | 148 | 130 | 10000 |
| Gearex 35 | 46 | 133 | 105 | 185 | 6 | 216 | 128 | 180 | 280 | 213 | 172 | 150 | 17000 |
| Gearex 40 | 52 | 158 | 120 | 215 | 6 | 246 | 144 | 214 | 318 | 249 | 192 | 175 | 28500 |
| Gearex 45 | 80 | 172 | 135 | 245 | 8 | 278 | 164 | 233 | 347 | 273 | 216 | 190 | 37000 |
| Gearex 50 | 80 | 192 | 150 | 295 | 8 | 308 | 182 | 260 | 390 | 308 | 241 | 220 | 51000 |
| Gearex 55 | 90 | 210 | 175 | 300 | 8 | 358 | 214 | 283 | 425.5 | 333 | 275 | 250 | 65000 |
| Gearex 60 | 100 | 232 | 190 | 305 | 8 | 388 | 236 | 312 | 457 | 364.5 | 316 | 265 | 85000 |
| Gearex 70 | 100 | 276 | 220 | 310 | 10 | 450 | 263 | 371 | 527 | 424 | 360 | 300 | 135000 |
5. Why choose Dai Hong Phat Corp?
– 100% genuine products imported directly from KTR 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/


















