DURABLE, HIGH-PRECISION BALL SCREWS

RACO has been developing and manufacturing precision ball screws for more than six decades and is one of the leading international manufacturers in terms of technology and quality. Together with our valued customers, we develop customized ball screws whose profile geometry is perfectly adapted to the loads of an application and any installation concerns.

RACO manufactures ball screws for:

  • Machine tools (per specification)
  • Measuring and testing equipment
  • Specific applications for protypes in research and development

RACO ball screws achieve the highest standards of positioning accuracy for repeatability and provide for long service life due to their profiling and surface quality.

The Art of Ballscrew Manufacturing

PRECISION BALL SCREWS FOR DEMANDING APPLICATIONS

We work together with our customers to develop customized ball screws whose profile geometry is perfectly adapted to the load spectrum and the available installation space.

RACO ball screws features:

  1. Fast actuating speed ability
  2. High duty cycles
  3. Excellent repeatability and accuracy
  4. High efficiency

RACO ball screw features:

RACO offers high-precision ball screws from 8 mm (0.314 in) to 125 mm (4.92 in) diameter, with a total length of up to 8 meters (315 inches) with special sizes on request.

Specifics:

  • Load type (static and dynamic)
  • Maximum speed (critical speed)
  • Buckling strength (optimum rigidity)
  • Accuracy class (permissible pitch deviation)
  • Anti Backlash (if necessary, preload of the spindle nut)
  • Axial play (pre-tensioning of the spindle nut if necessary)
  • Service life according to the specified operating conditions
  • Environmental influences of the application
  • Lifecycle costs

We develop customized ball screws with perfectly adapted profile geometry for the specific application.

Phone 412-835-5744
Email raco@racointernational.com 

Contact Form

Our promise: we keep your downtime to a minimum.

RACO manufactures new actuators and facilitates repairs at our Bethel Park location which allows for maximum vertical integration. Thanks to decades of experience and the modular RACO system, we can provide both repairs and replacements quickly. We will do everything possible to minimize downtimes.

Do you know?
RACO can replace ball screws from other manufacturers. 

  • Droop + Rein
  • DIAG
  • Cover
  • Waldrich
  • Hessap
  • Heyligenstaedt
  • Reishauer
  • Reckermann
  • Forst
  • Lindner

Patented Technology

The single overruns, the ball groove profile, the preloaded single nut and the short-stroke ball screw are patented by RACO.

Highest-precision production using a grinding process

We exclusively use various grinding processes in a temperature controlled environment as our manufacturing standard. Grinding is not only the best-known process in the industry, it also produces by far the best results in terms of the performance characteristics of ball screws. However, grinding high-precision threads is time-consuming and requires a series of preparatory operations. RACO masters these challenging operations and assembles the components in the final assembly with the utmost care. The precision of the thread has a particular influence on the dynamic behavior of the ball screw drive. The RACO ball screws are highly precise and have a high degree of efficiency thanks to their optimized design.

Induction Hardening

RACO ball screws are induction hardened. Each individual production step is monitored, particularly with regard to the degree of hardness and crack formation, in order to guarantee our high-quality standard. This is documented in accordance with ISO 9001/Rev.2000.

The Ball Screw Nut Design

RACO's patented ball deflection technology allows a return of the balls into the load-bearing thread in the shortest possible path . This allows for moving Higher loads despite the short and compact design and of the nut assembly, which provides very efficient use and a long service life. The backlash is eliminated by using a preload of single and/or double nuts, thus achieving exact positioning even with repeated actuation, especially when load direction changes.