Screw drives for demanding industry applications

Bosch Rexroth simplifies industry-specific machinery and equipment manufacture by combining the wide range of standard ball and planetary screw assemblies with factory customisations.

In many applications, shorter cycle times, greater precision, compact installation space, and demanding environmental conditions all need to be met simultaneously – and all under the pressure of time and cost.

Bosch Rexroth offers tailor-made solutions for this based on standardised components, directly from the factory. The range includes coatings, special lengths, and machining according to customer specifications, as well as combined screws, special nuts, and pre-assembled units, thereby saving users the trouble of having to develop complex special designs.

This service means machinery and equipment manufacturers receive practical solutions significantly more quickly and for a predictable cost – including CAD data and comprehensive documentation. Examples of such solutions include:

• For machine tools and other high-precision applications, Bosch Rexroth offers temperature-controllable screws with deep-hole bores and rotary bushings to enable the integration of cooling lines. The retrofittable temperature control function means higher process stability and part accuracy can be achieved from the first workpiece. Bosch Rexroth reduces the engineering and assembly work and costs of servo presses for sheet metal forming by providing complete solutions with ready-mounted end bearings.
• Robotics requires compact, dynamic solutions that can be easily integrated into mechanical systems. For robot welding tongs, for example, Bosch Rexroth implements special nuts with external toothing for the pinion drive. This allows for direct consideration of customer-specific motion and installation situations.
• In medical technology, fall protection of components is an important requirement to ensure patient safety. In the case of X-ray tubes, CT scanners, and other equipment, arrestor nuts ensure a reliable hold in the event of an emergency.
• In semiconductor manufacturing, screw drives work under demanding environmental conditions. Special coatings, materials, and nuts with deflection systems enable use at high temperatures, in vacuums, as well as in highly dynamic applications. The optical industry also uses matt silver or matt black chrome-plated versions to prevent unwanted light reflections.
• Bosch Rexroth responds to special requirements in the field of intralogistics with a combination of right-hand and left-hand threads. This modified screw solution is used in forklifts and automated guided vehicles to adjust the forks to accommodate different pallet types.

www.boschrexroth.com/en/gb/