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FineLine Precision Rolled Ball Screws

FineLine Precision Rolled Ball Screws

FineLine Rolled Ball Screw Assemblies are designed and manufactured to provide high level performance at an affordable price. Ball screws are manufactured using Thomson’s patented, German-engineered Precision Screw Forming (PSF) Technology, which provides high accuracy (±23µm/300mm standard) with the manufacturing efficiency of rolled processes. Ball nuts are manufactured with one of two ball return systems (button or end return) made with reinforced steel, making them extremely durable and ideal for high speed, high load, and/or high temperature applications.


FineLine Precision Rolled Specifications (Metric Units):

Diameter (mm) Lead (mm)
4 5 10 20 25 32   40
12 X X      
16 X      
20 X X      
25 X X   X    
32 X X X   X  
40 X X X     X
50 X      
63 X X      
80 X X      

FineLIne Precision Rolled Highlights:

  • Manufactured by patented PSF (Precision Screw Forming) technology
  • Offers low cost, high precision performance in applications typically requiring ground screws
  • Responsive manufacturing & delivery times.
  • No hard spots in the screws that can mar the ball surfaces and shorten screw life.
  • Smoother and quieter running due to superior surface finish.

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.

FineLine Precision Rolled Ball Screws (Metric)
FH/FK Style Ball Screw Nuts
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