FAQ
Find the information you need quickly: Our FAQ section brings together answers to the most frequently asked questions about Walther Flender's products, applications, calculation tools, and services.
When selecting the right timing belt, the application is always the deciding factor. Whether for material handling, linear drives, or power transmission: A timing belt will only function reliably if it is consistently matched to its specific task and operating environment.
Many problems—such as excessive wear, noise, or unstable processes—are not caused by the timing belt itself, but rather by a selection that is not tailored to the specific application. What exactly is the timing belt’s function? Which requirements are most important—service life, smooth operation, positioning accuracy, or power transmission? And what factors does it face, such as chemicals, dust, or regulatory requirements like FDA or EU guidelines? In material handling applications in particular, the protection of the cargo, abrasion resistance, and the appropriate coating also play a central role. For power and lifting drives, on the other hand, both service life and cost-effectiveness are key considerations.
Selecting a timing belt that is consistently tailored to the specific application increases operational reliability, reduces the effort required for fine-tuning, and prevents the need for subsequent modifications to the drive system.
You can find the right timing belt for your application using, for example, the Belt Drive Navigator 2.0 belt calculation program. With this multi-pulley calculation program, you can not only design the optimal timing belt drive in no time, but you can also configure timing belt pulleys at the same time. Walther Flender’s Application Engineering team is also happy to assist you in selecting the optimal belt. Our team of experts has many years of experience across more than 25 industries.
In the printing and paper industry, high standards for cleanliness, low abrasion rates, precise positioning, and smooth operation are crucial. Hybrid LL timing belts and polyurethane LL timing belts are particularly well-suited for lifting and linear applications. For power transmission, Hybrid, GT3, GT4, Twinpower, and Poly Chain Carbon Volt timing belts are the preferred choices. For transport tasks involving continuous operation or vacuum technology, polyurethane LL, Flex, and molded timing belts are the optimal solution.
For woodworking machines, Hybrid, GT3/GT4, and Poly Chain Carbon Volt timing belts are suitable for power transmission; PU molded and Flex timing belts are suitable for workpiece transport; and Hybrid LL, HTD-LL, and PU-LL timing belts are suitable for lifting and positioning tasks. They enable precise positioning, low wear, and gentle material transport.
Hybrid and molded PU timing belts, Flex belts, or polyurethane belts sold by the meter—such as the Hybrid LL timing belt—are frequently used in medical technology. They enable clean, low-wear, and precise operation in sensitive applications.
Hybrid timing belts are particularly suitable for textile machines. GT3/GT4, Twinpower, and Poly Chain Carbon Volt timing belts, as well as finite polyurethane timing belts, are also frequently used. They ensure clean processes, low abrasion rates, and smooth operation.
For machine tools, Hybrid LL and HTD-LL timing belts are suitable for precise linear motion, while Hybrid, GT3/GT4, and Poly Chain Volt timing belts are suitable for power transmission. In addition, the Machine Tool timing belt was developed specifically for use in machine tools. It enables high positioning accuracy, a compact drive system, and quiet operation—even in demanding industrial environments, such as those involving coolants and lubricants.
The HYBRID LL timing belt from Walther Flender is ideal for applications with high demands on smooth operation, cost-effectiveness, and compact installation space. The HYBRID LL timing belt features a special nylon fabric that helps reduce noise, making it particularly suitable for use in noise-sensitive environments. The HYBRID LL timing belt is available in 3M and 5M pitches, enabling compact and efficient drive designs.
The PolyChain Carbon Volt timing belt is particularly well-suited for applications at very low temperatures and in deep-freeze environments. It is temperature-resistant in a range from +85°C to -54°C. In addition, Powergrip GT timing belts are available in a special LowTemp rubber compound, allowing even the neoprene belts to be used at very low temperatures.
As a high-performance belt, the PowerGrip GTX synchronous belt is ideally suited for applications involving high torque at low speeds. Thanks to its high-strength, low-elongation cord, the GTX synchronous belt is particularly resistant to shock loads.
Which timing belt lasts the longest depends heavily on the application and operating conditions. In general, however, the PolyChain timing belt is known for its long service life. Compared to traditional drive systems, the PolyChain Carbon™ Volt timing belt delivers up to 8 times more power. The carbon-fiber core ensures high strength and dimensional stability, with improved impact and fatigue resistance, lower elongation, and greater flexibility.
The extremely high-performance Poly Chain Carbon™ Volt timing belt is particularly well-suited for high speeds. Compared to conventional drive systems, it delivers up to 8 times more power. The carbon fiber core ensures high strength and dimensional stability, with improved impact and fatigue resistance, lower elongation, and greater flexibility.
PowerGrip® GT4 / GT3 ADVANCED timing belts are particularly well-suited for precise positioning tasks. They offer high positioning accuracy thanks to optimized tooth geometries, low elongation, and consistent motion transmission. This makes them ideal for automation, handling, and positioning applications.
The PowerGrip® GT4 / GT3 ADVANCED timing belts are among Walther Flender’s timing belt systems that require particularly little maintenance. They require no lubrication and no retensioning. For automatic door and gate drives, the HYBRID LL timing belts also offer maintenance-free operation thanks to their exceptionally low voltage drop.