08/2021: DYNAGEAR HighRatio – The new two-stage servo right-angle gearbox: space-saving and powerful

Power needs to be effective. To ensure that this happens in the best possible way, the experienced gearbox manufacturer Nidec Graessner has developed the DynaGear HR, a new two-stage right-angle gearbox that is extremely space-saving and also has outstanding running smoothness. It complements the single-stage DynaGear gearbox series. With a trans-mission ratio range from i = 16:1 to i = 150:1, the limits of what is possible no longer result from what is technically feasible, but merely from one's own imagination.

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Automation requires flexibility. In order to realise this optimally and as comprehensively as possible, a high degree of precision and mobility is required in the smallest possible space. This is where the DynaGear HR two-stage angular gearbox opens up completely new areas of application while maintaining the same high performance. The reasons for this are its short, narrow and therefore space-saving construction, its outstanding flexibility thanks to many designs, sizes and transmission ratio variants, as well as its very smooth running due to the planetary pre-stage and the hypoid gearing on the output.

The gearboxes are lubricated with a fully synthetic gear oil and a special grease as lifetime lubrication. The gearbox and planetary pre-stage are thus practically maintenance-free. As an option, lubrication approved for foodstuffs can be realised. Furthermore, the drive flanges and shafts can be supplied in stainless steel and the housing in an anodised version on request.

Your benefits

Two-stage angular gearbox with a transmission ratio range from i = 16:1 to i = 150:1
Compact overall length as well as narrow design at the output
Excellent running smoothness due to hypoid gearing in combination with helical planetary gears
Gearbox dimensions are the same for all ratios
Low weight and minimal backlash
Virtually maintenance-free under normal operating conditions
Energy-saving due to high efficiency of up to 92 %

Press Release as pdf:

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04/2021: NIDEC GUIDEDGEAR: Warehouse automation thrives on reliability

Automation is replacing human labour at more and more points within the industrial value chain. An important part of this is warehouse automation with Automated Guided Vehicles (AGVs). For this purpose, experienced gearbox manufacturer Nidec Graessner provides powerful drive solutions for more performance and energy efficiency.

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Warehouse workers have become rare in the industrial context. They are being replaced by powerful AGVs that do the monotonous, arduous and injury-prone warehouse work faster and more precisely – and that 24 hours a day, seven days a week. The goal is high speed in the flow of goods with optimum availability of the required materials. This ensures a smooth running of the flow of goods, increases quality and thus secures long-term competitive advantages.

The performance of an AGV depends to a decisive degree on its drive system. The more precisely it works and the more robust it is, the more trouble-free the processes in the warehouse and all the process steps that build on them. As a global player in gearbox manufacturing, Nidec Graessner supplies highly functional and reliable drive solutions that can be individually adapted to your AGV. The company based in Dettenhausen has 130 employees and is part of the Japanese Nidec Group and therefore also offers integrated automation solutions in top quality from a single source.

Your benefits

Tailored to your needs: standardised coaxial or angular solution or individual configuration fully adapted to your specific requirements
From a single source: including motor and controller on request
High quality: high precision and smooth running with compact design
Great flexibility: 4 available wheel sizes, numerous motor connections possible
Load capacity: higher load possible with same size
Helical planetary gears offering the best possible efficiency
High radial loads
Smaller design: angular design (EVO series)
7 standard series (including angular design)
Worldwide service

Press Release as pdf:

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05/2020: FLEXWAVE – Robots would choose Flexwave

Robots love it exact. Machine tools, automation and semiconductor production also demand ever greater precision. Therefore, there is no way around the high-quality Flexwave Strain Wave Gearboxes from Nidec Graessner.

Flexwave – a light, compact strain wave gearbox with high precision, efficiency and torsional stiffness with low starting torque, zero backlash and high transmission ratios. The Flexwave gearboxes combine exactly these characteristics. In sizes ranging from 35 to 80, the gearboxes provide ratios of up to i=120:1.

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With 0.1 kg to 3.4 kg - depending on the design and size - the Flexwave units are real lightweights that with up to 346 Nm on the output side provide a very high maximum torque. Different installation kits also enable quick and safe installation.

The transmission mechanism
As soon as the cam is inserted, the flex gear and the elastic bearing take on an elliptical shape. The flex gear and the internal gear are engaged firmly at both ends of the long axis of the ellipse. As soon as the internal gear is fixed and the cam on the input side is turned clockwise, the flex gear on the output side turns counterclockwise. The respective speed is determined by the different number of teeth between the two gears.

Your advantages

Ratios up to i=120:1
Different sizes: 35 to 80
Selection of installation kits available in different sizes
High precision, repeatability and torsional stiffness
Backlash-free
Low starting torque
Low weight

Press Release as pdf:

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03/2020: PLANETGEAR – The benchmark for planetary gearboxes

The planetary gearbox from Nidec Graessner is a compact powerhouse that shows its full strength whenever high precision is required in a sensitive environment ‐ in robotics and automation, in the
food industry and medical technology, in machine tools and packaging machines as well as in aerospace.

As an expert in special gear boxes, Nidec Graessner forms an invincible pairing with Nidec‐Shimpo and together with their customers they constantly put their energy in improving and optimising their PlanetGear planetary gearboxes so they can master the most demanding challenges:

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Highest power density and efficiency
High level of effectiveness
High dynamics
Low circumferential backlash
High overload capacity
Low mass moment of inertia torque
Helical gearing
Perfect arrangement of bearing positions
Excellent sealing/lubrication system

Nidec Graessner customers benefit from outstanding engineering performance and timeliness, user‐specific know‐how, state‐of‐the‐art production facilities and a worldwide sales network – just like they have been accustomed to for decades.

Nidec‐Shimpo's extensive experience with planetary gearboxes enables Nidec Graessner to reliably provide their customers with a wide range of sizes and ratios wherever the customer is.

Press Release as pdf:

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01/2020: EVOGEAR – The new servo angular gearbox from Nidec Graessner

Precision meets efficiency
The new servo angular gearbox EvoGear offers outstanding versatility and an optimized design.

EvoGear beautifully combines all the benefits of a powerful gearbox and is geared towards anyone that values a wide variety of ratios, stylish and easy-to-clean design.

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As the name suggests the EvoGear gearbox is an advancement - but it’s a mini revolution too, as all of the findings, design aspirations and requirements that we’ve had over the last few years have been invested in a cost-effective, multifunctional product.

That’s why the components were reduced in size, the construction was improved, and more ratios were implemented, as well as additional output variants. The new planetary output level also offers two-stage ratios up to i=100:1 with high torsional rigidity, while the Washdown housing provides enormous benefits in terms of hygiene.

EvoGear is an exceptionally dynamic drive solution that guarantees the highest performance with low dimensions and a low weight due to its compact, stable construction.

The gearboxes are virtually maintenance-free under normal operating conditions due to lifetime lubrication (> 30,000 h S5 load spectrum as a design basis). Its high efficiency factor up to 96 percent also saves energy.

The following frame sizes are available: EG055, EG075, EG090, EG115 which contain the following output variants: L (full shaft), LSV (hollow shaft) with the following ratios: i= 3:1, i=4:1, i=5:1, i=6:1, i=8:1, i=10:1, i=12:1, i=15:1 and PL (planetary output level) with the following ratios: i= 16:1, i=20:1, i=25:1, i=28:1, i=35:1, i=40:1, i=50:1, i=70:1, i=100:1 .

Press Release as pdf:

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10/2019: Nidec Graessner is now the Central European Operations Center for High Precision Technologies of Nidec-Shimpo

Starting October 1st 2019, Nidec Graessner takes over the European high-precision gearbox business of Nidec-Shimpo
As part of Nidec-Shimpo’s continuous efforts to streamline its operations, it has successful completed the transition to move its European high precision gearbox business to Nidec Graessner GmbH & Co. KG, located in Dettenhausen, Germany.

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This business was previously managed by Nidec-Shimpo America Corporation based in Illinois, U.S.

This strategic decision places Nidec-Shimpo in a much better position to compete and provide better gear solutions and services within the European region.

More importantly, the central location of Nidec Graessner in Europe will allow the group to provide even better local support to partners and customers in terms of inventory, application engineering, services and sales support activities to further accelerate the growth of our business together.

As a result of this transition, Nidec Graessner will be in-charge of all direct communication and transactional activities, including purchase orders within the European region.

We would like to ensure that this transition will be as seamless as possible to everyone concerned.

Please do not hesitate to reach out to our team, should you have any questions.

05/2018: MS-Graessner: Original meets robotics

DynaGear gearbox now also available with robot flange compliant with EN ISO 9409-1, expanded with hollow shaft for supply lines
A new push for robotics. Effective immediately, the highly dynamic hypoid bevel gear systems of the DynaGear series are available with a flange ideally suited for the diverse requirements of robotics.

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This is because the original MS-Graessner DynaGear gearbox has been consistently developed for the highest requirements in terms of dynamism and precision.

Advantages for a wide range of applications in automation and robotics

The new DynaGear series, with EN ISO 9409-1-compliant robot flange and hollow shaft, is capable of carrying supply lines and other media. In conjunction with a wide gear ratio range, from 3:1 to 15:1 in a single stage, DynaGear is perfect for applications in automation and robotics.

Approximate and specific advantages
Wear-free torque transmission thanks to the friction-locked connection between the shaft and the bevel gear means nothing less than permanently high transmission precision. The DynaGear gearbox achieves a service life in excess of 30,000 hours in S5 operation, in any installation position.

DynaGear is furthermore exceptionally flexible: Eight finely graduated frame sizes offer solutions for highly dynamic servo drive solutions with nominal torques T2N between 35 and 1,440 newton metres, in over 10,000 standard variants.
The robust, one-piece, cast-aluminium housing is as firmly established as our development principle: all components are designed to withstand the very highest loads.

Precision and efficiency for highly dynamic servo drive solutions
Robot flange, designed in compliance with EN ISO 9409-1. DynaGear gearboxes have an efficiency factor of up to 96%. Compact, stable design for the highest performance with small dimensions and minimal weight. This is what makes DynaGear - the original - the first choice.

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02/2018: Precision at 8500 rpm – new design size S75

The highly efficient bevel gearboxes of the PowerGear^HS series of MS-GRAESSNER have been developed consistently for the requirements at the highest input speeds. At low transmission ratios, they offer many advantages for different applications.

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Modern angular transmission drives of today need to be quick, quiet, reliable and sustainable. Above input speeds of more than 2000 rpm, the stress and performance requirement is very high. As leader in bevel gear technology, MS-GRAESSNER also sets standards here and offers a perfectly adapted PowerGear^HS gearbox for use in many applications up to 8500 rpm. The single-stage gearbox offers with a housing different transmission ratio variants. The new improved bearing technique and optimized Gleason gearing technology with a high load capacity and noise optimized design guarantee high precision, high speed and this with a long operating life.

Various industries such as machine tools, e-motive or rapid handling systems that employ high-speed gearboxes require couplings, motor flanges or solid shafts at their input. PowerGear^HS satisfies this demand. The output via solid or hollow shafts as well as variable transmission ratios allows a flexible installation with an optimal operating point. Depending on the transmission ratio and construction type, the gearbox allows input speeds from 2000 to 8500 rpm. The efficiency factor in the gearing system of more than 98% and the large operating temperature range from -30°C to +100°C ensure an operating life of more than 15,000 hours.

input speeds up to 8500 rpm
transmission ratios 1:1/1.5:1/2:1
for dynamic servo-drive solutions
higher permissible thermal performance limit
low backlash and high transmission accuracy
motor mounting via coupling and lantern
suitable as pre-stage for coaxial gearboxes
energy-saving due to high efficiency rating of 98%
also available in stainless steel

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07/2017: MS-Graessner goes one better. PowerGear^Miniaturenow also available with hollow shaft!

After last year’s successful market launch of the PowerGear ^Miniature type series and respective customer demand, MS-Graessner, as of now, offers the frame sizes P45 and P33 with hollow shaft design at the output.

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10/2017: MS-Graessner closed the torque gap!

MS-Graessner successfully closed the torque gap with the new frame size PowerGear P65.

With a nominal torque of 25 Nm P65 excellently fills the gap between the well-established frame sizes P54 (15 Nm) and P75 (45 Nm). In full shaft or hollow shaft design, the new P65 is available with ratios from i = 1:1 to i = 5:1.

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It is self-evident that for this new frame size the Gleason gear meshing with optimised parameters to achieve highest torques, and high-quality tapered roller bearings to accommodate radial and axial loads are employed.

The catalogue in english is cooming soon. Please contact us!

+49 (0) 7157 123-0

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07/2017: TorusGear – moving more on Mars and on Earth.

The patented revolution from MS-Graessner
A space pioneer with both feet firmly on the ground. This aptly describes TorusGear, the totally new development in gearboxes from MS-Graessner. Because this revolutionary planar spiral gearbox feels completely at home on difficult terrain.

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"Life on Mars" - an illusion? Since 22 November 2016, TorusGear has been helping to take a closer lock there. The gearbox is steering the Mars camera CaSSIS for the first high-resolution images of the Red Planet, with a spectacular view of the surface. TorusGear ensures the high-precision rotation of the reflecting telescope. This unique planar spiral gearbox has a precise gear ratio of i = 200: 1, and convinced the aerospace engineers immediately. The swivel mechanism consists of a hollow shaft mounted on two ceramic bearings and driven by the TorusGear, where the Torus gear wheel is an integral component of the hollow shaft.
The success sto1y of the TorusGear is now being continued on Earth. With entirely terrestrial, tangible benefits for you. For example, the compact, backlash-free gear ratio of up to i = 400:1 in a single stage. Thanks to its extraterrestrial experience and requirements, the TorusGear also has significant installation space advantages. lts torsional rigidity and transmission precision are also out of this world.

One great advantage of the TorusGear is precisely the fact that it can be flexibly adapted to your requirements and wishes in difficult environmental conditions. And always offers a perfect solution. Turn our Martian skills to your advantage!
Press Item

12/2016: Takeover of the TorusGear technology

Die MS-GRAESSNER GmbH & Co. KG hat im September 2016 das gesamte Know-how der TEDEC AG, Zofingen/Schweiz übernommen.
This results in an ideal synergy effect: state-of-the-art gear meshing technology combined with many years of experience in gear engineering. The further development of the TORUS gearbox (TorusGear), including series development, is thus guaranteed - also from the perspective of customer-specific applications.

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09/2016: The Revolution among Miniature Gears: PowerGear^Miniature

Revolution is a big word. But in this case it is more than justified. Because the new PowerGear Miniature gearbox is a small space sensation. Impressively small and incredibly powerful.
Forget everything you know about miniature gears. Dimensions, weight, precision – the new PowerGear^Miniature sets new standards. Revolutionary standards.

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1. The dimensions – nobody is smaller:
PowerGear Miniature has a sensationally small installation size: with an edge length of just 27 mm (smallest size), this gear unit is predestined for a large number of delicate applications.

2. The material – first-class:
This gear unit is the only one in this construction class not to have a plastic housing, but instead, a solid and extremely lightweight aluminium housing. The inner workings also harbour the highest material quality for a long service life, such as the case-hardened bevel gear tooth system.

3. The precision – almost impossible to beat:
PowerGear Miniature stands out due to its low backlash and high transmission accuracy, as well as the friction-locked, non-wearing shaft-and-bevel-gear fit. In addition, the assembly offers an optimised contact pattern, leading to uniform gear load.

4. The performance – phenomenal:
Performance is measured not only in terms of torque and rotational speeds. But they are important factors. Here, the input speed is 7,500 min-1. And the nominal torques T2N - depending on the installation size - are between 3.5 Nm and 16 Nm.

5. The extras – customised:
With all of MS-Graessner's expertise acquired over decades, we are able to offer customers individual solutions that are fully in line with their specific requirements.

6. The applications – extremely diverse:
As unique as PowerGear Miniature is, as varied are it’s applications in drive technology.

7. The energy efficiency – exemplary:
Due to its extremely high level of efficiency of 98%, these miniature gears are also particularly energy-efficient.

» PowerGear ^Miniature Flyer
» Press Release (09/2016)

05/2016: Small, powerful, unique – the new right angle gearbox DynaGear D37

Superlatives should be used sparingly. In this case, the new bevel gearbox DynaGear D37, top performance is the design principle.
Dynamics and precision in a small format – that is how the specification sheet for the new DynaGear D37 gearbox could be described. And that is not only well worded, but also professionally implemented.

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This new bevel gearbox completely fulfils the demands placed on a highly dynamic servo drive solution with a compact size.

The facts:

Single-stage right angle gearbox with a gear ratio range from 3:1 to 15:1
Highest performance with small dimensions and a low weight
Available as a solid or hollow shaft design
Lifetime lubrication – and therefore practically maintenance-free under normal operating conditions
Energy-efficient – due to the high efficiency level of up to 96%

The subtleties:

High torsional stiffness at the output
Small moments of inertia on the input
System optimisation through variable torsional stiffness of the coupling
Wear and backlash-free torque transmission through force-fitted shaft-hub connection

And although this gear unit is a technical sensation, it is nevertheless extremely quiet. So in all modesty: The new DynaGear D37 gear unit can definitely be described as a genuine milestone.

Would you like to know more? Simply visit us at AUTOMATICA 2016, booth B6.515 or at our product information:

» DynaGear D37 Flyer
» Press Release (May 2016)

12/2015: New Website of MS-Graessner online

It's finally here - we’ve managed it just in time for the New Year:
we are delighted to be able to present our new website to you with its new fresh look.

06/2015: We build any type of gearbox. Well, almost any.

MS-Graessner advertising campaign
Whether extremely high rotational speeds, extremely compact or a complete new development in accordance with customer wishes – MS-Graessner can build your gearbox. With 60 years of engineering expertise. Without compromises. And without any frills.

04/2015: 60^th anniversary.

Established in 1955 (April 21st) Graessner celebrated last month its 60th anniversary. 60 years of experience in manufacturing bevel gears and bevel gearboxes combined with our engineering experience and technical know-how enable us to provide customers all over the world the best possible solution for their applications. Here are some impressions of the beginnings in Steinenbronn...
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08/2014: GEARFOX Developer Software for KUKA Robots in use.

(MS-Graessner) The new, highly specialised and Internet based GEARFOX developer software from MS-Graessner shows what it’s made of: Using a number of parameters, GEARFOX calculates perfect gear data for its respective area of use. For example, the new KL 100 linear unit, developed specifically for the KR AGILUS from KUKA.
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09/2013: Very smart – An innovative vibration analysis

MS-Graessner introduces its new transmission analysis system
(MS-Graessner) has decades of experience in the development and production of high precision bevel gears and bevel gear transmissions, which virtually predestines MS-Graessner GmbH & Co. KG to also set new standards in the analysis and verification of transmissions.
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09/2013: PT1000 – Nothing is left to chance.

MS-Graessner introduces its new temperature measurement system
(MS-Graessner) The condition of transmission fluid is a decisive factor for the functionality and ultimately also the service life of every transmission. As a transmission specialist with decades of experience, MS-Graessner now offers its new PT1000 temperature measurement system, which allows for reliable oil temperature measurement throughout the production process.
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08/2012: High performance in a confined space.

The new and improved KS TwinGear helical bevel gearbox

Improvements in gear components, bearings and centring
Six models available in ratios between 15:1 and 75:1
Backlash < 6 arcmin, reduced backlash available on request

Nidec Graessner – News

08/2021: DYNAGEAR HighRatio – The new two-stage servo right-angle gearbox: space-saving and powerful

04/2021: NIDEC GUIDEDGEAR: Warehouse automation thrives on reliability

05/2020: FLEXWAVE – Robots would choose Flexwave

03/2020: PLANETGEAR – The benchmark for planetary gearboxes

01/2020: EVOGEAR – The new servo angular gearbox from Nidec Graessner

10/2019: Nidec Graessner is now the Central European Operations Center for High Precision Technologies of Nidec-Shimpo

05/2018: MS-Graessner: Original meets robotics

02/2018: Precision at 8500 rpm – new design size S75

07/2017: MS-Graessner goes one better. PowerGearMiniature now also available with hollow shaft!

10/2017: MS-Graessner closed the torque gap!

07/2017: TorusGear – moving more on Mars and on Earth.

12/2016: Takeover of the TorusGear technology

09/2016: The Revolution among Miniature Gears: PowerGearMiniature

05/2016: Small, powerful, unique – the new right angle gearbox DynaGear D37

12/2015: New Website of MS-Graessner online

06/2015: We build any type of gearbox. Well, almost any.

04/2015: 60th anniversary.

08/2014: GEARFOX Developer Software for KUKA Robots in use.

09/2013: Very smart – An innovative vibration analysis

09/2013: PT1000 – Nothing is left to chance.

08/2012: High performance in a confined space.

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07/2017: MS-Graessner goes one better. PowerGear^Miniaturenow also available with hollow shaft!

09/2016: The Revolution among Miniature Gears: PowerGear^Miniature

04/2015: 60^th anniversary.

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