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  • Acme Screw VS Ball Screw: Which to Choose?
    There are several differences between acme and ball screws, and as in most cases the application will determine the type of screw used. The following article will discuss a few key points that will help you choose the appropriate screw for your application.
  • ACME Screws - An Economical Means to Convert Motion
    The R/B/S line of ACME screw products has been designed and manufactured to provide an economical means for converting angular/rotational motion to linear/translational motion. The R/B/S standard line of ACME screws are produced to General Purpose-2G tolerances from excellent quality materials
  • A Critical Look at Acme, Ball, and Roller Screws for Linear Motion
    actuators: Acme, ball, and roller. The differences are in thread shape and the design and operation of the matching nut. But which type of screw best suits your application? Here's a concise look at all three. screws use strong threads with generally trapezoidal teeth which are usually rolled onto
  • Which Screw? Picking the Right Technology
    . There are three primary types of screws used in linear actuators: acme, ball and roller. The differences are in the design of the thread shape along with the design and operation of a matching nut. These differences within each type of screw design will be detailed later in the following sections. To provide
  • Where die casting makes "cents "
    precise tolerancing requirements and do so on a budget. The gear drive incorporated not only an Acme screw thread at one end of a bearing journal but also a cross-axis helical gear on the other. One potential option was machining. But this was costly and time consuming. It would have entailed making
  • Cable Reels
    . *?Tool must weigh 1500 lb. or less. *?Easily connect and disconnect from the loading area crane. Solution: *?A custom-designed Positech Slide Gripper with an ACME screw drive that self locks to. provide safety when the cable reels were gripped. *?Variable frequency drive for slow and fast speeds
  • Actuators tackle the tough jobs
    more contact points than balls screws of the same size. This extends their life and increases stiffness and load capacity. Planetary roller screws are efficient and compact devices that convert rotary motion into linear motion. They perform the same types of tasks as do Acme or ball screws
  • New Spins on Bearing Technology (.pdf)
    Nook Industries provides a complete selection of inch and metric Ball Screws, Roller Screws, Acme Screws, Lead Screws, End Bearing Supports, Precision Locknuts, Worm Gear Screw Jacks, Electric Actuators, HRC 60 Linear Shafting, Linear Bearings and Pillow Blocks to the Linear Motion Industry
  • What You Ought To Know About Ball Screws
    as small as 0.375-in. diameter and 0.125-in. lead with 90% efficiency. (Acme screws are typically just 30 to 60% efficient.) Single-nut screws have 170-lb dynamic load capacity and 1,600-lb static load capacity. Load capacities double when using two nuts. The next time you're faced with a design

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