Nook Industries, a leading innovator of linear motion components and systems, proudly offers a complete line of standard ball screw products. An upgrade from acme screws, ball screws provide advantages similar to those had by antifriction bearings over plain bushings. Ball screws serve a variety of applications, including machine tools, assembly devices and robots.Nook’s precision ball screws operate through ball bearings which help transfer the load between the nut and screw. The bearing balls ride along an ogival-shaped thread that is formed from two arcs of the same radius with offset centers. This form is referred to as a gothic arch. Ball screws offer the low-friction advantage of antifriction screws at a lower cost and are capable of longer life and higher speeds than comparable acme-type lead screws.
While acme screws often average efficiencies of about 50 percent, ball screws have efficiencies that are often more than 90 percent. By design, ball screws travel smoothly over the entire travel range. Ball screws can be attached to the nut by a number of different configurations, including mounting and pinning the ball nut flange, standard flange orientation and proper ball nut orientation.
“Nook Industries has worked very hard to perfect the rolling process,” said Jeff Naymik. “This allows us to achieve higher lead accuracies without the time-consuming grinding process.”
For more information, visit Nook Industries.