Miniature Ball Screw Products


Ball Screws are a very efficient (90-98%) way to translate rotary motion into linear motion versus lead screws that are typically less than 50% efficient.   These high efficiency miniature metric precision ball screws are a very cost-effective solution for use in small or compact spaces.   Ideal application are in medical devices, laboratory automation, and semiconduction equipment.  We offer many types of Miniature Ball Screw Assemblies.  To help you with your selection, below is a gallery of images along with a few points (i.e., features) for each type.

Email or call us to discuss your application or click on links below to see more!

Precision Ground
Ball Screws

SG Series --- Quick Delivery

  • With Finished Drive End Journals
  • Accuracy C3 & C5
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Precision Rolled
Ball Screws

SR Series --- Quick Delivery

  • With Unfinished Ends
  • Accuracy C7 & C10
Learn More

Rolled w/Integrated
End Journal

SRT Series --- Quick Delivery

  • With Integrated Drive End Journals
  • Accuracy C7 & C10
Learn More

Precision Rolled
Special C5 Accuracy

PSRT Series

  • With Finished Drive End Journals
  • Accuracy Grade C5
Learn More

Stainless Steel Rolled
Ball Screws

SSR Series

  • With Unfinished End Journals
  • Accuracy C7 & C10
Learn More

Cylindrical (Sleeve Type)
Nut Ball Screws

BS & BSR Series

  • For Custom Applications
  • Compact Space Requirement
Learn More

Cylindrical Nut
with Thread

MS & MSR Series

  • Threaded Nut Body
  • For Ease of Assembly
Learn More

Sub Miniature
Ball Screws

FBS Series

  • World's Smallest Screws
  • For Very Small Devices
Learn More

Double Nut
Ball Screws

FSBS & SWBS Series

  • For Smooth and Quiet Operation
  • Less Friction than others
Learn More

Motorized Ball Screw
Assembly

MoBo Series

  • Stepper Motor Powered
  • Integrated Assembly
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Bi-Directional
Ball Screws

SD Series --- Quick Delivery

  • Screw w/ Left/Right Thread
  • Nut Movement Opposite Directions
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Screw Options
and Treatments

Black Chrome-Corrosion Resistant

  • MSG Grease Types
  • Accuracy Grades
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Compact Ball Screw End Support Units (High Accuracy Grade)

Pillow Block Ball Screw Support Bearings
Flanged Ball Screw Support Bearings

MSU-G and MSU-GS support units (photo) for miniature ball screw assemblies are now available. These are the preferred support bearing units to be used with our precision ball screw products.

  • MSU-G for fixed side support
  • MSU-GS for float side support

This product is very lightweight, more than 50% less than conventional support units.

Learn More

Additional Ball Screw Accessories

To complete your assembly we offer conventional fully housed support bearings and duplex pair angular contact bearing sets. Fixed and Floating End Support Bearing Assemblies

Some accessories can be made of Stainless Steel or plated with TDC processed for Corrosion Resistance.

Learn More

To visit our Linear Positioning Systems website to see our "custom" capabilities.

The Precision Alliance
4215 Pleasant Rd., Fort Mill, SC 29708

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