Extremely precise, durable gears

Accurate and reliable positioning of heavy loads and large parts is the task of rugged gearboxes. Robust gears with high torque and maximum precision are required. Nabtesco cycloidal gears are the perfect solution. Their special design makes them extremely durable, precise and efficient, allowing them to easily handle the heaviest loads. Make your job easier. Take advantage of our compact heavyweight!

Whatever you need to move, position, handle or transport - large panes of glass, giant sheets of metal, heavy machine parts or even entire vehicles - we have the right heavy-duty gearbox for your precision applications. Nabtesco gears for heavy loads provide torques up to 28,000 Nm and are equipped with powerful integrated main bearing; they are insensitive to vibration and are characterized by high overload capacity and extreme stiffness, as well as minimal play throughout the entire period of use. They perform precise movements and precise positioning even in extreme conditions.

Use our experience in heavy-duty gearboxes:

•     Nabtesco gears has over 35 years of experience in robotics and automation
•     Nabtesco is the market leader in robot gears
•     RV-2800N: The world's largest precision gearbox
•     Neco®HT-900: The world's largest plug-and-play transmission
•     Compact, high-performance gearboxes for every requirement
•     Comprehensive support, optimized for your specific application
•     Extensive engineering services
•     Worldwide availability with fast delivery
•     A unique level of service

Durable gears from Nabtesco: Simply reliable

Heavy duty gearboxes are specifically designed for demanding applications. They are characterized by the highest precision, dynamics and reliability to ensure reliable positioning even in the most demanding applications. Perfect solution for high torques and heavy loads.

The two-stage reduction principle ensures excellent performance in terms of dynamics and smoothness of operation, as well as high repeatability and path accuracy. Integrated angular contact ball bearings absorb both axial and radial loads and bending moments, providing high torsional stiffness as well as impact and overload resistance (up to 500% of rated torque). Power transmission via cams and rollers ensures virtually full contact and even distribution of forces in the transmission, which translates into high stiffness. As a result, it is possible to transmit very high torques with maximum precision and smooth operation. The increase in clearance is negligible even with long-term use.

Easy handling of heavy loads:

•     Extreme precision: hysteresis loss < 1 arcmin, purely mechanical backlash 0.1 - 0.2 arcmin
•     High torque up to 28,000 Nm
•     High torsional stiffness and bending strength
•     High shock resistance (up to 500% of rated torque)
•     Integrated main bearing absorbs high bending moments
•     Low inertia
•     Insensitivity to vibrations
•     Designed for low wear and very long service life
•     High reduction ratio in a compact design

By the way: In cycloidal gears, the efficiency improves with increasing load. Reason: higher torque translates into greater stiffness. Stiffness reduces the flexibility of the transmission, which increases efficiency.

High-performance cycloidal gears: A real alternative to hydraulics or large planetary gears

Heavy loads are often moved using hydraulic systems or large planetary gears. However, cycloidal gears are definitely better in most cases. Their special design allows very high reduction ratios to be achieved with only two to three gear stages, which guarantees precise positioning in a very compact design.

Heavy duty cycloidal gears are more efficient, safer, stronger, stiffer, more compact and lighter than conventional technologies and have stood the test of time in a variety of heavy-duty applications around the world - from robotics, automotive engineering, glass, shipbuilding and mining to oil platforms, cranes, food and packaging industry and welding.

Durable cycloidal gears are suitable for:

•     Handling at high speed
•     Robot-assisted positioning
•     Robots for heavy loads
•     Pick-and-place applications
•     Assembly and handling systems
•     Rotary positioners
•     Positioning with indexing, positioning or rotation
•     Loading pallets
•     Peripheral equipment

Wide range of graduated sizes for high precision and heavy duty applications

Specifically for high-precision, heavy-duty applications, we offer a wide range of high-performance gearboxes in graduated sizes to provide an optimal solution for even the most demanding tasks - from highly integrable component sets to compact gearboxes and dynamic servo gears, as well as efficient rotary indexers. Hollow shaft gearboxes are the best choice for space-saving data and power cables as well as drive shafts. The large hollow center shaft provides ample space for cables and wires. Nabtesco hollow shaft gearboxes feature an extra large main bearing, making them ideal for all applications requiring high torque ratings and high rigidity. The hollow design of these gears is also a decisive advantage in terms of weight.

RV-N series gearboxes are designed to operate in difficult conditions:

•     RV-N: Gears for robots with solid shaft
•     RV-C: Gears for robots with hollow shaft
•     Neco®HT: Modular high-torque gearboxes for automation
•     RS: Durable, precise hollow shaft gears for rotary positioning

We offer assistance in all matters related to heavy duty gears and heavy applications and implement customized solutions that are tailored to the specific application requirements. Contact our experts.

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