Stöber Antriebstechnik offers various series of rack and pinion drives that can be directly attached to synchronous servomotors from the EZ series in all sizes. The user receives a compact, reliable, easy-to-use system that is precisely tailored to their task. These are used, for example, in machine tools or in automation and robotics. The manufacturer only uses case-hardened and ground pinions with the highest gear quality for the gearbox output. "With these smart and high-quality solutions, we have rounded off the bottom end of our mechanical system," says Matthias Eberle, Director Business Development Asia Pacific at Stöber. The components are available in various lengths and modules. This allows them to be tailored precisely to the respective application.

Double the bore - double the safety

As the rack must not move when force is applied by the pinion, suppliers usually ensure this by using dowel pins at both ends of the rack in addition to the pressing force. However, this is associated with a considerable amount of work, as the holes for the dowel pins and their reworking with a reamer must be made directly on the machine in the bolted-on state to ensure that the position is exactly right. This work is extremely laborious and time-consuming, especially for complex systems with various attachments. "Our solution eliminates the need for time-consuming pinning," says Eberle. Stöber supplies the precision racks with a double bore. Instead of every 125 mm as usual, there is now a hole for the screw connection every 62.5 mm. This doubles the contact pressure of the component on the machine body. There is no need for pinning, but this is possible thanks to the existing pin holes. This ensures maximum safety. Matthias Eberle adds: "The user also benefits from the ease of assembly."

The new rack is particularly efficient in the Stöber system. If a customer has installed a competitor's component and would like to replace it with the new solution, they can do so easily with the interface-compatible rack. This gives the user a high-quality component at a very attractive price. With the new rack, Stöber is continuing its system concept. Just as the customer now receives a complete mechanical system, the drive specialist can also supply the complete automation solution comprising gearbox, motor, electronics and cables if required. "The decisive factor for us is that our engineers work hand in hand across departments - from gearbox and motor development to electronics development," explains Eberle.