Ball screws
Our standard product range covers rolled ball screws. We also deliver polished or wired ball screws. The NEFF thread profiles are produced by cold rolling in the thread rolling method. This leads to a high stability/ firmness and surface quality.The thread profile is rolled by cold rolling. Through this generated forming, a solidity and surface quality is realized. The Gothic pointed arch profile with a 45° contact angle and optimized osculation guarantees ideal operating characteristics. The NEFF manufacturing process, starting with raw material tailored for our specifications, followed by thread rolling and inductive hardening, finally finishing the surface ensures a constant high quality of our ball screws. The ball screws in stock range from Ø12 to Ø80 with pitches varities up to 60mm. The multi-start thread profile guarantees high load ratings. The standard pitch deviation of a rolled ball screw drive lies by T7 (52µm/300mm). Because of the continuous process chain in the spindle production, we are able to deliver spindles with an accuracy T3 (12µm/300mm). Furthermore we also deliver polished or wired ball screws according to our clients drawings in the required quality classe

Parameter Name	Parameter Value
Material	steel
Type	rolled
Diameter (mm)	16 - 80