Nabtesco

Manufacturer information and published contact details

Nabtesco contact details

Head office

JA Kyosai Bldg., 7-9, Hirakawacho 2-chome
Chiyoda-ku, Tokyo 102-0093
Japan

Website nabtesco.com

Nabtesco Precision Europe GmbH (European precision gear company)

Tiefenbroicher Weg 15
40472 Düsseldorf
Germany

Telephone +49 211 17379-0

Email info@nabtesco.de

Web nabtesco.de/en/imprint

Show Nabtesco headquarters on the map Open in Google Maps →

Contact details as published by Nabtesco Corporation, checked 2026-10-30. Specify Motion is not affiliated with Nabtesco Corporation.

Nabtesco product lines

Who Nabtesco is

Nabtesco Corporation is a Japanese engineering group whose precision reducer business is best known for RV cycloidal gears, the compact, very stiff reduction gears used in the joints of many industrial robots. Alongside cycloidal gears, the precision business makes strain-wave gears, rotary indexers and mechatronic drive systems. RV and Neco are trademarks of their owner.

Precision reduction gears are one of a broad set of Nabtesco businesses that also include railway vehicle equipment, aircraft and marine equipment, commercial vehicle components, automatic doors and platform screen doors, packaging machinery and welfare equipment. The group reports 8,472 consolidated employees at the end of December 2025. Its European precision company says it has production capacity of over one million gearboxes a year, with a plan to reach two million by 2030, and more than 14 million gearbox systems in use worldwide.

History and ownership

Nabtesco traces its roots to two companies. Nippon Air Brake Co. (Nabco) was founded in Kobe in 1925 to make railway air brake equipment. Teijin Seiki began in 1944 in Iwakuni, Yamaguchi, as a spin-off from the predecessor of the Teijin fibre group, taking the Teijin Seiki name in 1945.

In 2003 the two became wholly owned subsidiaries of a new holding company, Nabtesco, which listed on the First Section of the Tokyo Stock Exchange in September that year. In October 2004 both were absorbed into Nabtesco, which became an operating holding company.

In Europe, Teijin Seiki Europe GmbH was established in Düsseldorf in 1992 and is now Nabtesco Precision Europe GmbH. Nabtesco Europe GmbH followed in 2017 as the European regional holding company. The group set up a precision reducer company in Shanghai in 2010 and completed a factory in Hamamatsu in 2023.

Product portfolio

RV cycloidal component sets

Component sets are built into the customer’s own housing, which is how robot makers use them. The RV-N series is the compact solid-shaft range for robot joints, in 13 sizes rated from 245 Nm to 28,000 Nm with permissible acceleration torque up to 70,000 Nm. The RV-C series has a central hollow shaft up to 138 mm for cables and hoses, rated from 98 Nm to 11,760 Nm. Nabtesco also lists the original RV series with its own output bearing and the RF-P for high speed in tight spaces.

Plug-and-play cycloidal gearboxes

For machine builders who want a sealed, lubricated gearbox rather than a component set, the RD-C series offers hollow-shaft gearboxes in right-angle, direct and belt-drive versions, rated 98 to 3,136 Nm. The Neco and Neco HT range is modular, adapts to standard servo motors and is rated 245 to 9,000 Nm, with hysteresis loss under 0.5 arcmin.

Strain-wave gears

Nabtesco’s strain-wave range covers gear sets, gear sets with output bearing, complete gearbox units, a digital strain-wave gear with sensors, short gears and actuators, described as having zero backlash. See our gearbox hub and the harmonic vs planetary vs cycloidal guide.

Technologies and standards

The RV principle combines a spur-gear first stage with an eccentric, oscillating cycloidal second stage. Many pins share the load, so RV gears tolerate shock loads well; Nabtesco quotes shock capacity of up to 500 % of rated torque, hysteresis loss under 1 arcmin and pure torsional backlash of 0.1 to 0.2 arcmin for its cycloidal range. Compared with strain-wave gearing, cycloidal gears are generally chosen for higher torque, stiffness and shock resistance at a given size, while strain-wave gears are lighter and offer very high single-stage ratios. Nabtesco publishes rated torque, permissible acceleration torque and emergency stop torque separately, and sizing should check all three against the duty cycle.

Industries served

Nabtesco describes itself as the number one supplier in robotics for precision gears. RV gears are used in robot joints and positioners, and the RD and Neco gearboxes in rotary tables, turntables, machine tools and general automation where high torque and stiffness are needed. Our robotics and cobots page covers the other parts a robot joint needs.

Global and UK presence

Nabtesco runs regional precision gear sites for the Americas, Europe and Africa, Asia-Pacific, India and China. Nabtesco Precision Europe GmbH in Düsseldorf (Tiefenbroicher Weg 15, 40472 Düsseldorf, +49 211 17379-0, info@nabtesco.de) serves Europe; its site does not list a UK office, so UK engineers deal with the Düsseldorf team, which publishes regional contact persons.

What to have ready for a Nabtesco enquiry

Quote the full model and ratio code (for example size, series letter and ratio), whether it is a component set or a complete gearbox, and the input arrangement: input gear, motor flange or belt. Add rated and peak output torque, output speed, required life, tilting moment on the output bearing and whether a hollow shaft is needed.

Sourcing Nabtesco gears through Specify Motion

Specify Motion is independent of Nabtesco and is not affiliated with it. We can help source Nabtesco gears for an existing machine, or propose cycloidal, strain-wave or planetary gearboxes from our supply network that meet the same published figures. Find a replacement takes the model code and the requirement.

Nabtesco history: key dates

1. 1925Nippon Air Brake Co. (Nabco) founded in Kobe
2. 1944Teijin Seiki's predecessor established in Iwakuni; renamed Teijin Seiki in 1945
3. 1992Teijin Seiki Europe GmbH, now Nabtesco Precision Europe GmbH, established in Düsseldorf
4. 2003Nabtesco formed as holding company of Teijin Seiki and Nabco; listed on the Tokyo Stock Exchange
5. 2004Teijin Seiki and Nabco absorbed into Nabtesco
6. 2010Precision reducer subsidiary established in Shanghai
7. 2017Nabtesco Europe GmbH set up as European regional holding company
8. 2023Hamamatsu factory completed

Nabtesco gearboxes

Cycloidal gearbox

RV-N cycloidal gear component sets

Compact solid-shaft RV cycloidal component sets for robot joints in 13 sizes, rated 245 to 28,000 Nm with permissible acceleration/deceleration torque up to 70,000 Nm and hysteresis loss under 1 arcmin.

Cycloidal gearbox

RV-C hollow-shaft cycloidal gear component sets

Hollow-shaft RV cycloidal component sets for robot bases and wrists in 11 sizes, rated 98 to 11,760 Nm, with bores up to 138 mm and hysteresis loss under 1 arcmin.

Cycloidal gearbox

RD-C hollow-shaft cycloidal gearboxes

Plug-and-play, pre-lubricated hollow-shaft cycloidal gearboxes in right-angle (RDR-C), direct (RDS-C) and belt-drive (RDP-C) versions, sizes 10C to 320C, rated 98 to 3,136 Nm.

Cycloidal gearbox

Neco and Neco HT cycloidal gearboxes

Modular, plug-and-play solid-shaft cycloidal gearboxes that accept standard servo motors, rated 245 to 1,600 Nm (Neco) and 3,724 to 9,000 Nm (Neco HT), with hysteresis loss under 0.5 arcmin.

Frequently asked questions

What is the Nabtesco website?

The group website is nabtesco.com. The precision gear business has a portal at precision.nabtesco.com that links to regional sites; the European site, nabtesco.de, carries the cycloidal and strain-wave gear ranges with technical tables, downloads, contact persons and the imprint for Nabtesco Precision Europe GmbH.

What is Nabtesco's phone number and email in Europe?

Nabtesco Precision Europe GmbH, Tiefenbroicher Weg 15, 40472 Düsseldorf, Germany, lists telephone +49 211 17379-0 and email info@nabtesco.de in its imprint. It is registered at the Düsseldorf local court under HRB 28165. Its managing director is listed as Marcus Löw, and the company serves customers across Europe and Africa.

Where is Nabtesco's headquarters?

Nabtesco Corporation's head office is in the JA Kyosai Building, 7-9 Hirakawacho 2-chome, Chiyoda-ku, Tokyo 102-0093, Japan. The European precision gear company is based in Düsseldorf. The group reported 8,472 consolidated employees at the end of December 2025, and its precision gear business has regional sites for the Americas, Europe, Asia-Pacific, India and China.

Who owns Nabtesco?

Nabtesco Corporation is a listed company in its own right, formed in 2003 when Teijin Seiki and Nabco came together under a new holding company that listed on the Tokyo Stock Exchange the same year. Nabtesco Precision Europe GmbH is part of the Nabtesco Group.

Does Nabtesco have a UK office?

Nabtesco's European precision gear site does not list a UK office or UK contact. UK customers are served from Nabtesco Precision Europe GmbH in Düsseldorf, which provides contact persons by region through its website. The Düsseldorf company has served Europe since 1992.

What does Nabtesco make?

Its precision reducer business makes RV cycloidal gears (RV-N, RV-C, RV, RF-P), plug-and-play cycloidal gearboxes (RD-C, RD-E, Neco), strain-wave gears, rotary indexers and mechatronic systems. The wider group also makes railway, aircraft, marine, commercial vehicle, automatic door and packaging equipment.

Sources

1. Nabtesco: Company overview
2. Nabtesco: History (Japanese)
3. Nabtesco Precision Europe: Imprint
4. Nabtesco Precision Europe: This is us
5. Nabtesco Precision Europe: Home and contact
6. Nabtesco Precision Europe: Cycloidal gears
7. Nabtesco Precision Europe: RV-N
8. Nabtesco Precision Europe: RV-C
9. Nabtesco Precision Europe: RD-C
10. Nabtesco Precision Europe: Neco
11. Nabtesco Precision Europe: Strain wave gears

Figures are summarised from the sources above and from manufacturers' published data on the date shown. Always confirm against the current datasheet for your exact part.