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Brand
Flender
Flender is the German maker of industrial gear units and couplings, best known for the N-EUPEX, RUPEX, ARPEX and ZAPEX coupling families and for heavy gear units for mills, conveyors, pumps and ships. It was founded in 1899 as A. Friedrich Flender AG and is headquartered in Bocholt, Germany. It was part of Siemens from 2005 and has been an independent company again since 2021. Seven Star LLC is an independent supplier in Muscat. We list Flender couplings and gear units, and supply Flender couplings, spare elements and gear unit parts to plants in Oman and the GCC by type and size.
Read the full brand profile- 14 products
- 3 categories
Brand profile
About Flender
- Founded
- 1899
- Headquarters
- Bocholt, Germany
- Speciality
- Gearboxes, couplings and drive systems
- Listed with us
- 14 products in 3 categories
Flender is the German maker of industrial gear units and couplings, best known for the N-EUPEX, RUPEX, ARPEX and ZAPEX coupling families and for heavy gear units for mills, conveyors, pumps and ships. It was founded in 1899 as A. Friedrich Flender AG and is headquartered in Bocholt, Germany. It was part of Siemens from 2005 and has been an independent company again since 2021.
Seven Star LLC is an independent supplier in Muscat. We list Flender couplings and gear units, and supply Flender couplings, spare elements and gear unit parts to plants in Oman and the GCC by type and size.
Flender company profile
| Established | 1899, as A. Friedrich Flender AG; it first made wooden belt pulleys |
|---|---|
| Headquarters | Bocholt, Germany |
| Ownership history | Acquired by Siemens in 2005 (later its Mechanical Drives business), sold to Carlyle in 2021 as an independent company; in 2026 Carlyle agreed to sell Flender to Triton |
| Product families | Flexible, all-steel, gear and safety couplings; helical and bevel-helical gear units; marine gearboxes; wind turbine gearboxes (Winergy) |
Milestones
- 1899: A. Friedrich Flender AG is founded; its first products are wooden belt pulleys.
- 2005: Siemens acquires Flender.
- 2021: Carlyle buys Flender and it becomes an independent company again.
- 2026: Carlyle agrees to sell Flender to Triton.
Flender products we list
| Product | Type | Typical use |
|---|---|---|
| N-EUPEX, RUPEX, N-BIPEX | Flexible couplings with elastomer elements | Pumps, fans, compressors and conveyors driven by electric motors |
| ELPEX | Highly flexible coupling | Drives with strong torsional vibration, such as diesel engines |
| N-ARPEX | All-steel disc coupling | Maintenance-free, lubrication-free drives such as pumps and compressors |
| ZAPEX ZW, N-ZAPEX | Gear couplings | High torque in compact size for mills, crushers and heavy drives |
| ARPEX AKR | Safety coupling (torque limiter) | Protects the drive train against overload and blocking |
| Flender ONE, H2SV 09 | Industrial gear units | Conveyors, mixers, pumps and other heavy industrial drives |
| NAVILUS, NAVILUS multiple-input | Marine gearboxes | Propulsion and dredge pump drives on ships and dredgers |
The coupling type follows the drive. Flexible couplings with rubber elements, such as N-EUPEX and RUPEX, absorb shock and small misalignment and are easy to service because only the elements wear. All-steel disc couplings such as N-ARPEX need no lubrication and suit high speeds. Gear couplings carry the highest torque for their size but need grease. For a replacement, the coupling type and size code on the hub, together with the shaft diameters, identify the right part.
Where Flender products are used
In Oman and the GCC, Flender couplings and gear units drive pumps, compressors, fans and conveyors in oil and gas, cement, mining, steel, water and desalination plants, and ports and marine vessels.
Ordering Flender products: what we need
For couplings, send the type and size (for example N-EUPEX B 160), the bore diameters and keyways, the motor power and speed, and whether you need a complete coupling or spare elements. For gear units, send the nameplate data with the order number and serial number.
Facts checked against Flender company history and published transaction reports, October 2026.
Flender products by category
Request a Quote for Flender Products
Looking for Flender parts not listed here, or pricing for a project? Send us the part numbers and quantities. Seven Star LLC sources genuine Flender products for customers across Oman and the GCC and replies with a formal quotation.
- Genuine OEM products
- Supply across Oman & the GCC
- Formal quotation from our sales team
Free, no-obligation quotation · takes about 1 minute
Other enquiries: [email protected] · WhatsApp
FAQ
Questions about Flender
Common questions about Flender equipment, part numbers and supply to Oman and the GCC.
01How do I read a Flender gear unit designation such as H2SV 09?
In the manufacturer's helical and bevel-helical catalog, H stands for a helical unit and B for a bevel-helical unit, and the digit is the number of stages. The following letters describe the output shaft, with S for a solid shaft, and the mounting position, horizontal or vertical. The final number is the size. Ratio and options are given separately on the nameplate, so send a photo of it.
02What information is on a Flender nameplate, and why do you need it?
The nameplate carries the type and size, the order or serial number, transmission ratio, rated power, input and output speeds, oil grade and quantity, and the weight. With the serial number, bearings, seals, shafts and gear sets can be traced in the manufacturer's parts list for that unit instead of being guessed from the type alone.
03Can a Flender ONE unit replace an older single-stage gearbox?
Flender ONE is the manufacturer's redesigned single-stage helical gear unit, configured for each application. Whether it fits in place of an existing unit depends on center distance, shaft height, shaft diameters, ratio and foundation dimensions. Send the nameplate and the dimension drawing of the installed gearbox, and we will check the manufacturer's selection data for a matching configuration.
04Which documents can be provided with a Flender gear unit?
On request we provide the manufacturer's datasheet, dimension drawing, operating instructions and the certificates the manufacturer issues for the order, such as material or test documentation. For marine gearboxes, name the class society in the inquiry. Specify all required documents before the order is placed, since they are produced with the unit.
05Is Seven Star LLC a distributor of Flender?
No. Seven Star LLC is an independent supplier. We source Flender gear units, couplings and parts through commercial channels, check the nameplate data against the manufacturer's documentation, and provide the manufacturer's datasheet with the order on request. A nameplate photo sent with the inquiry is the best starting point.