Successful lateral thinking with the advanced right-angle servo gearbox from STOBER

Compared to other variants, the one-stage version enables a higher output speed and delivers 'power without compromise. The gear ratio range has been extended on both the low and high ends for all variants, so customers benefit from precise, low-backlash and maintenance-free solutions for highly dynamic requirements.

"Our one-stage right-angle servo gearboxes are not only more compact, but they are also more robust thanks to the reduced number of components. And since there is only one gear ratio stage, this has a positive effect on energy efficiency," explains Martin Preece, Head of UK Subsidiary for STOBER.

With their robust bearings and high-quality gearing, KS gearboxes are extremely durable making them suitable for continuous operation, even at high speeds. This series also features very high torsional stiffness with the one-stage version available in ratios 2 and 4.

Continues Martin: "By combining the KS right-angle servo gearbox with compact STOBER planetary gearboxes, it can be further expanded into multi-stage gearboxes with ratios from 6 to 400. This more than doubles the previous gear ratio range we have been able to offer so it covers an even wider range of applications.

"This solution is also robust, rigid with low backlash making it suitable for dynamic requirements. We have also standardised the type of designation and adapted the design of the right-angle servo gearbox to the new, round shape of our planetary gearboxes."

Flexible and compact

"Just as with the two- and three-stage versions, designers can choose between three shaft designs," adds Martin. Thanks to these customised output geometries, KS gearboxes can be used for a variety of applications. The two- and three-stage gearboxes can be combined with various STOBER motors via direct attachment. The space-saving drive ensures operators benefit from less weight in addition to high torque and the resulting increased power density. Because the mass moment of inertia of the gearbox is lower due to the absence of the motor adapter, users can take advantage of the full dynamics of the drive.

"We continue to support the consistent optimisation of our very broad product portfolio - which also includes the KS right-angle servo gearbox. Thanks to low-friction bearings in the input, higher speeds can be realised, whilst most competitors rely on preloaded tapered roller bearings, which are less efficient."

Higher output speeds realised

Concludes Martin: "We've increased the nominal torques by up to 20 percent and increased the permissible input speed. Together with the smaller gear ratios, our customers can realise significantly higher output speeds - a clear advantage in the market.

"Another highlight is the modular design throughout. By adding planetary gearboxes, multi-stage variants can be implemented flexibly - according to the customer's exact requirements. Successful lateral thinking in action!"