New planetary gear units from STOBER

STOBER has developed its third generation of servo geared motors, which the company claims are the most compact drive solutions on the market with their described level of versatility. To achieve this, the lengths of the new gear units have been significantly reduced, and as with all the company’s motors (including its EZ series and sensorless Lean versions), they can be directly attached without an adapter and in any desired size.

Due to the compactness, users benefit from a smaller installation space and lower weight but with greater torque and a resulting power density that is increased by up to 65%. The mass moment of inertia is also lower because a motor adapter is no longer needed, allowing the full dynamics of the drive to be used. The new generation also features high backlash stability together with  high acceleration torques (increased by 60%) coupled with a speed increase of 45% and an increase in torsional stiffness of up to 50%.

STOBER highlights the fact that a key feature of its new planetary gear units is  operational flexibility. This means that the gear units can be combined with different STOBER motors via direct attachment and that they can also be attached to all third-party motors (in any size) using variable adapters: the company offers a one-of-a-kind interface technology for this purpose. STOBER motor adapters are available with different couplings as well as ServoStop which features an integrated brake. The adapters can also be combined with standard or reduced-play gear units. The design of the STOBER adapter with an extra-large motor plate makes it possible to connect compact STOBER gear units to motors of a large size.

Depending on the application, STOBER offers designers a choice of bearings including deep-groove ball, cylindrical roller or, for higher loadings and heavier duties, angular contact bearings. 

The new range from STOBER also features an electronic nameplate. In combination with the STOBER electronics, every geared motor automatically sends its electronic, mechanically relevant data by plug and play to the corresponding drive controller upon commissioning. As a result, each geared motor has its own ID, helping operators eliminate the possibility of error-prone parameterisation.