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Nabtesco will present RDS-C Link, which combines its RDS-C series cycloidal gearboxes with a FLUX encoder, at the SPS trade fair in Nuremberg from 24 to 26 November 2026. According to the company’s announcement of 27 October 2026, the solution detects absolute position directly at the gearbox output shaft. Nabtesco will also show a fourth-generation digital strain wave gear and new Super-Short actuators with reduced axial length.
The company presents the three new products as the result of work with technology partners including ALVA, FLUX and adcos, a Nabtesco Group company.
Position feedback straight from the output shaft
RDS-C Link pairs the RDS-C series of hollow-shaft cycloidal gearboxes with parallel-axis drive with a FLUX encoder tuned specifically for the application. Because the encoder measures absolute position at the output shaft, Nabtesco says high positioning accuracy is maintained even under load. The company adds that the compact design reduces design and integration effort.
The inductive measuring principle also makes the system suitable for harsh environments with dust, contamination or condensation. RDS-C Link is available for various sizes of the RDS-C series, with further gearbox sizes and custom solutions available on request.
Fourth-generation digital strain wave gear
The second new product is the fourth generation of Nabtesco’s digital strain wave gear. It integrates smart sensors and data analysis into the gear without changing installation dimensions, enabling condition monitoring that includes load monitoring and lifetime tracking based on captured operating data. New features include integrated position measurement, digital communication via BiSS-C and a customer tool for parameterisation, monitoring and analysis. According to Nabtesco, users benefit from higher control accuracy, more transparency into operating and condition data, and simpler integration and commissioning.
Actuators about 30 percent shorter
The Super-Short actuator combines gearbox, motor, bearings and encoder in a plug-and-play unit. According to Nabtesco, it is about 30 percent shorter axially and about 30 percent lighter than comparable standard actuators. It pairs ALVA’s GearTorq frameless motor, made with patented FiberPrinting technology, with the Nabtesco strain wave gear. A specially tuned control system from adcos is available as an option.
Nabtesco will exhibit at SPS 2026 in Hall 3A, Booth 426.
Sources
- Nabtesco, “Nabtesco at SPS 2026 – Smart Motion Control: Mechanical Precision Meets Digital Intelligence”, 27 October 2026: nabtesco.de
Image: Nabtesco
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