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Precision Rolled Inch Ball Screws

Precision Rolled Inch Ball Screws

Thomson Precision Rolled Ball Screws come in a full range of diameters, leads, and ball nut configurations, in either preloaded or non-preloaded types, all in industry-standard envelopes. They provide dependable accuracy and repeatability at an economical price.  Featuring Tangential Ball Returns, a Thomson design which minimizes recirculated bearing ball deflection, for smoother and quieter operation.   Standard flanges are offered for many of our ball nut models


Precision Rolled Specifications (Inch Units):

Lead (inch)
0.05 0.062 0.125 0.20 0.25 0.413 0.473 0.50 0.66 1.00 1.50 1.875 2.00
0.187 X X
0.375 X
0.500       X       X          
0.631       X           X      
0.750       X       X          
0.875       X                  
1.000         X     X   X      
1.150       X                  
1.171           X              
1.500         X   X X   X   X X
2.000               X   X      
2.250               X   X      
2.500         X     X   X      
3.000                 X   X    
4.000                   X      

Precision Rolled Highlights:

  • When replacing conventional actuation systems (such as acme screws, hydraulics, or pneumatics), ball screws can use smaller, less-expensive drive motors reducing the need for auxiliary equipment
  • Over 90% efficiency with a constant low coefficient of friction
  • Dependable accuracy and repeatability at an economical price
  • Gothic arch ball groove geometry extends service life, reduces lash, and optimizes stiffness in preloaded assemblies
  • Optional wiper kits and end support blocks increase service life
  • Available in a full range of diameters, leads, and nut configurations, either preloaded or non-preloaded types
  • Non-standard lengths available

Find a Product

Product Type

Screw Diameter

Screw Lead

Axial Load


Thread Direction


Product Family

CAD Models

  • Configurable 2D/3D Partstream Models
  • Configurable 2D/3D Solidcomponents Models
  • Configurable 2D/3D PartServer Models
  • Static 2D/3D Model file downloads

NOTE: Please use Internet Explorer 11, Edge, Firefox, or Google Chrome with Edrawings Viewer

Partstream Interactive Viewer Instructions:
1) Select a product from the table below and Configure your model to the right of the viewer that appears.
2) Click the Create button at the bottom of the configurator and wait for model to load (may take a few minutes).
3) Click the Download tab and login to your account if requested (or register as a first-time user).
4) Select a format, wait for the file to be created (may take a few minutes), and click the Download button.

Precision Rolled Ball Screws (Inch)
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