Miniature Ball Screws utilize internal ball return technology.

Press Release Summary:

Miniature Ball Screws provide 95% typical efficiency. Standard diameter starts at 4 mm, with 1 mm lead, and will include 6 mm and 8 mm diameters as well. Manufactured as both rolled and ground units, ball screws come in precision classes from ISO3 to ISO7 (0.012/300 mm to 0.050/300 mm). They have nylon wipers to protect from ingress of contamination. Units can be supplied with ends machined complete to customer's specification.

Original Press Release:

Thomson Industries Announces New Miniature Ball Screws

Saginaw, MI - As a result of increased demand for miniaturization within high-tech industries such as semiconductor, optics and instrumentation, Thomson Industries has launched a new range of miniature ball screws.

Utilizing internal ball-return technology, they provide high efficiency (typically 95%) and repeatability, precise positioning, and smooth, reliable motion.

The standard diameter starts at 4mm, with 1mm lead, and will include 6mm and 8mm diameters as well.

Manufactured as both rolled and ground units, they also will be available in a range of precision classes - from ISO3 to ISO7 (0.012/300mm to 0.050/300mm).

The units have nylon wipers as standard to protect them from the ingress of contamination and can be supplied with ends machined complete to the customers' specification.

Both standard catalog parts and custom application requirements can be accommodated.

For more information, call 1-800-554-8466, E-mail us at, or visit our website at

Thomson invented and manufactures a complete family of Ball Bushing* bearings, 60 Case* shafts, Thomson Saginaw* and IBL*
ball screws; RoundRail*, SmartRail*, and ProfileRail* linear guides, systems and controls; Micron True Planetary* gearheads;
Nyliner* engineered polymer bearings and FluoroNyliner* bushing bearings; precision bearing balls, and Thomson Airpax Mechatronics stepper motors, brushless DC motors, and digital linear actuators. All Thomson Industries manufacturing locations are ISO 9000 certified. Automotive facilities operate to QS-9000 standards. Thomson is a three-time General Motors Supplier of the Year and a two-time ITT Gold Award Supplier. Visit Thomson's Website at thomsonindustries-com; E-mail

* Trademark of Thomson Industries, Inc. THOMSON is registered in the U.S. patent and Trademark Office and in other countries.

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