• Ball Screw Wear Life

    Posted August 22, 2019 - Updated Dec 3, 2019

    Wear life of Ball Screws The wear life of Ball Screws is much more predictable than Power Screws due to the large body of research and testing that has been conducted on ball bearings and bearing balls. Assuming that a Ball Screw is a ball bearing arranged with helical inner and outer races, the listed […]

  • Ball Screw – Speed

    Posted August 22, 2019 - Updated Dec 3, 2019

    Speed for Ball Screws Ball velocity in a Ball Screw should not exceed 3,000 rpm x in. (rotational speed (rpm) times the nominal diameter (in.)). For example, a 3/4 x .200 size Ball Screw should be limited to 4,000 rpm (3,000/.750 = 4,000 rpm). For applications requiring speeds beyond 3,000 rpm x in., use a […]

  • Ball Screws

    Posted August 22, 2019 - Updated Dec 3, 2019

    Ball Screw Basics Ball Screws, first invented in the late 1800s, did not come into widespread use until the 1940s when they were adapted for use in the automotive steering gear. Since that time they have been used in a variety of industrial and commercial applications due to their high efficiency and predictable service life […]

  • Types of Screws

    Posted August 22, 2019 - Updated Dec 12, 2019

    There are two general types of screws used to create motion and power: Power Screws and Ball Screws. Power Screws Power screws are the simplest of these as they have only two main elements, the screw, and the nut. Considerations for application and selection of power screws include: Power screw basics and materials Speed for […]

  • Ball Screws – Transfer Instructions for Ball Nuts

    Posted July 26, 2019 - Updated Dec 4, 2019

    (Engineering Bulletin #/web974) For production environments, users will find it helpful to make an assembly arbor of steel which will fit over the machined ball screw on one end and fit into the shipping arbor on the other end. Use of such an arbor reduces the possibility of losing bearing balls during transfer. For a […]

  • Home Products

    Posted March 1, 2018 - Updated Dec 4, 2019

  • Ball Screws – Annealing the Shafting For Easier Machining

    Posted February 22, 2016 - Updated Dec 4, 2019

    (Engineering Bulletin #/web911) For customers who do their own end machining, it may be necessary to anneal (soften) the ends of the ball screw shaft. Annealing the Shafting For short shafts, immerse the portion of the screw, which is to remain hard in water. Heat the remaining portion of the shaft to approximately 1200° F. […]