Flender

Why Choose Flender

Flender has been engineering mechanical drive systems for over 120 years, with more than 500,000 industrial gearboxes operating in plants worldwide. That kind of track record speaks for itself.

Their gear units are built in Germany with tight manufacturing tolerances and high-quality raw materials, resulting in equipment that holds up in the most punishing industrial environments. The Flender ONE platform represents their latest advancement, featuring the proprietary Metaperform gearing geometry that reduces power loss by up to 20 percent compared to previous models. That translates directly to lower energy costs and longer operating life.

What sets Flender apart is how they approach the full drive system. Every Flender ONE unit ships with integrated AIQ sensor technology as standard, giving operators real-time condition data from day one. Paired with the PLANUREX line of planetary gear units, which handle torque ranges up to over 5,000,000 Nm, Flender covers virtually any power transmission need your plant can throw at it.

Their couplings round out the product line with solutions ranging from torsionally flexible N-EUPEX and RUPEX designs to high-speed membrane and gear couplings, all built to deliver reliable torque transmission with high torsional rigidity.

Capabilities of Flender Products

Flender ONE Industrial Gear Units are available in single-stage and multi-stage configurations suited for over 100 applications, including belt conveyors, bucket elevators, pumps, and overhead cranes. Each unit is configured to customer specifications using just three parameters: application, power, and speed. That means you get a gearbox sized for exactly what you need, with no wasted capacity and no unnecessary cost.

PLANUREX Planetary Gear Units deliver high power density in a compact footprint. These gear units are built for continuous heavy-duty operation and carry a 200 percent overload capacity relative to nominal torque. Available in multiple series, they can be combined with upstream helical, worm, or bevel-helical gear units for maximum flexibility.

Flender Couplings connect motors to driven equipment across a wide range of industrial applications. The product line includes pin couplings, claw couplings, fluid couplings, gear couplings, and more, all designed to handle misalignment, vibration damping, and reliable power transfer.

Flender AIQ is Flender’s built-in drive intelligence platform. With integrated sensors and onboard analytics, AIQ monitors speeds, temperatures, and vibrations in real time. It detects irregularities at the component level, recommends service actions, and can reduce unplanned downtime by up to 70 percent. For customers focused on plant availability and predictive maintenance, this is a game-changer.

Flender AIQ Detect takes condition monitoring to the coupling level. This digital sensor tracks the wear condition of N-EUPEX and RUPEX coupling elastomers around the clock, reporting status via an LED indicator, smartphone app, or the AIQ online portal. Instead of replacing elastomers on a fixed schedule, you replace them only when the data says it is time. That saves money, reduces waste, and keeps your line running.

Industry Applications

Flender gear units and couplings are found across nearly every heavy industrial sector, including power generation, chemical processing, oil and gas, cement, mining, pulp and paper, metals, marine, and food and beverage. If your facility runs rotating equipment with serious torque demands, there is a Flender solution built for it.

Why Buy Flender from Chalmers & Kubeck

C&K is the Flender Service Partner covering ME, NH, VT, MA, CT, RI, NY, PA, NJ, DE, MD, DC, WV, and VA. If your business operates in the Northeast / Mid-Atlantic corridor, C&K is your local support – your connection to the factory for OEM parts, couplings, intelligent monitoring solutions, and replacement gear drive solutions.  We  work directly with both the FLENDER Regional Service Manager and the FLENDER Aftermarket Business Manager to give you an unparalleled level of support.

Any product is only as good as the people who stand behind it. At Chalmers & Kubeck, our Gear Department has been overhauling, repairing, and maintaining industrial gearboxes since 1985. We are a member of the American Gear Manufacturers’ Association (AGMA), sit on two of their Technical Committees, and have served on their Board of Directors.  When your FLENDER gear drive needs servicing, C&K has you covered.  FLENDER trusts C&K to get the job done correctly and so should you – we have the experience, the procedures, the facilities, and the factory trained technicians that help protect your Critical Flender Assets.  Don’t trust the health of these engineered products to an unqualified vendor. The potential equipment damage and plant downtime are not worth the risk.  We’ve seen it happen and it’s not pretty.      

When something goes wrong at 2 a.m., our 24/7 emergency response team is ready. We stock spare parts, maintain a 150,000-square-foot facility with 130 machine tools, and bring the same urgency to every call, because we understand what unplanned downtime costs your operation.

Need Flender gear units, couplings, spare parts, a borescope inspection, or service? Contact us today to talk with a Flender specialist.