Ball screws are the specialty of Thread-Craft Inc.

Since 1958, Thread-Craft has been helping OEMs with their most challenging ball screw needs.  We specialize in new design, repair, engineering services, and OEM replacement of precision or rolled ball screws. Our climate controlled plant features all state-of-the-art CNC equipment for turning, milling, precision I.D. and O.D. grinding. We have more than 70 highly skilled, in-house machinists, technicians and engineers to provide the finest linear motion answers available at competitive prices. We provide 24 hour emergency service anywhere in North America. As an ISO 9001:2000 Registered vendor, we guarantee that our OEM replacement parts meet or exceed the quality and reliability standard of the original equipment.

1. Ball screw
2. Ball nut
3. Return system
4. Ball bearings
5. High carbon alloy or stainless steel used

• 10 mm diameter and larger
• Lengths up to 31 ft.
• Virtually any material and any return systems used-made from your sample or print
• Internal and external return systems
• 0.0002 lead error per foot or better upon request
• 12 month in-service warranty

• ½" to 4" diameter
• Variety of leads
• 0.005 lead error per foot
• 12 month in-service warranty

• ½" to 6" diameter
• 2mm to 2" leads
• 0.0005" lead accuracy per foot
• Internal style return system
• External style return system

• Engineering standards
• Accuracy in machining
• Proper installation
• Acceleration and deceleration factors
• Lubrication