• SR-SSR Flanged Nut Non Machined
  • MSR Thread Mounted Nut
  • BSR Compact Ball Screw
  • PSRT Flanged Nut
  • SRT-SSRT Flanged Nut Large Journal

Precision Rolled Ball Screws

Proudly supplying the KSS cold rolled formed precision ball screws makes the product ideal for applications that do not require the finite accuracy of the ground ball screw equivalent, but are still required to reliably and precisely transmit a linear load. Offering a wide range of ball nut designs, diameters from 4mm to 15mm and leads of 1mm to 20mm are available with accuracies of C7-20 to C10-50. All rolled ball screws can be supplied cut to length, with end journals machined ready to fit into an application.

Can we help?

With well over 3 decades of application experience and knowledgeable staff that are always available, please do not hesitate to contact our sales engineers on 01386 421 005

We will be more than happy to help, so please call today!

High mechanical efficiency guaranteed

KSS Ball Screws are fitted with Steel ball bearings, providing the rolling contact between the nut and Screw Shaft, allowing for mechanical efficiency of about 90% and reducing the required torque to less than one-third that of conventional Lead Screws. The design of the KSS Ball Screws also allows linear motion to be converted into rotary motion effortlessly.

●Axial play

With conventional Triangular and Trapezoidal Screw threads, reducing the axial play increases the rotational torque due to friction. KSS Ball Screws offer low friction with no axial play due the meticulous manufacturing methods employed. The use of double nuts can also further increase rigidity.

●High precision

KSS Ball Screws are machined, assembled, and inspected using the technology of ultra-precision lead screw and screw gauge machining, under the temperature-controlled environment. High precision and accurate positioning are ensured.

●Long service life

The KSS Ball Screw movement results in virtually no wear, as the rolling-contact design, combined with the use of carefully selected heat-treated materials, results in an extremely low friction. This is the reason that high precision can be kept over long period.

KSS Ball screws that have been cold rolled formed are ideal for applications that do not require the finite accuracy of the ground ball screw equivalents, but are still required to reliably transmit a linear load with high degree of accuracy. The following series are available in the precision rolled screw format.

SR/SSR with Flanged Mount Nut - C7 accuracy - 4mm diameter up to 15mm diameter screws. Screw leads from 1mm up to 20mm. Using the flange on the nut for attachment

MSR with Thread Mount nut - C7 accuracy - 4mm diameter up to 14mm diameter screws. Screw leads from 1mm up to 5mm. Using the thread on the nut for attachment

BSR Compact with Keyway Mount- C7 accuracy - 4mm diameter up to 14mm diameter screws. Screw leads from 1mm up to 6mm. Using external keyway on the nut  for attachment

PSRT with Flanged Mount Nut - C5toC7 accuracy - fixed 8mm diameter screw. Screw leads from 1mm and 2mm. Using the flange on the nut for attachment

SRT/SSRT with Flanged Nut - C7 accuracy - 4mm diameter up to 12mm diameter screws. Screw leads from 1mm up to 20mm. Using the flange on the nut for attachment

Put simply, the rolling process forms a thread for less cost than grinding. However, we can still achieve accuracies of C7-20 (that's 52 microns per 300mm of lead accuracy - 20 microns of axial backlash). We have well over 3 decades of experience in ball screws, ABSSAC can assist you through the selection process to ensure the right part is chosen for the application.

Precision rolled ball screw ranges encompass;

  • Precision rolled
  • Low cost
  • Lengths up to 1000mm
  • Precision C7-20 (New PSRT has 5 microns of backlash)
  • Lead accuracy .007mm/300mm or better
  • 4mm to 15mm diameter screws
  • Wide selection of leads and pitches available per diameter
  • Miniature precision ranges
  • Industrial heavy duty ranges
  • Flanged, cylindrical and end threaded ball nut designs
  • All parts can be supplied with journal ends machined and ready to fit application
  • All Ball screws can be supplied with integrated radial and thrust bearings mounts
  • ISO9001 approved

  • Precision Rolled Ball Screws
  • Large range available
    Large range available
  • Rolled ball screw gives low cost
    Rolled ball screw gives low cost
  • High lead ball screw design
    High lead ball screw design
  • Industrial Class ball screw 50mm diameter
    Industrial Class ball screw 50mm diameter
  • Industrial Class ball screw
    Industrial Class ball screw
  • Integral stator of step motor
    Integral stator of step motor
  • 00:00 / 01:00
    • Published: Tuesday 19th April 2016
    • Updated: Wednesday 20th January 2021

    Precision ball screws convert rotary motion into linear motion.

    They are precise, affordable and available through ABSSAC limited.

End Journal machining

Our machining capability gives you a high journal concentricity product and can be applied to all screws regardless of diameter.  Lets work together to reduce your scrap rates and supply ball solutions that fit your application every time. We can work directly from your dimensional drawings or if they do not exist, why not supply us with a physical sample for us to copy. Although all types of end machine detail can be supplied we offer a very cost effective basic end journal machining that fits our range of support bearings


Linear guides and rails

Linear guides and rails If you are interested in the using the transport ball screw ranges, do not forget that we also supply the full range of linear guides and rails which can provide the load support in your linear mechanism. Offering excellent rigidity and parallelism during operation the guides can be used in both vertical and horizontal planes.

Following the link to that product page Guides

Thrust and radial bearings

 Thrust and radial bearings

Please do not forget to ask for our competitive support bearing prices !

 If you require further technical information, please do not hesitate to contact our sales engineers who will be more than happy to help you with your selection.


Greases and Lubricants

We provide a full range of quality, low cost lubricants for all our linear products including low vapour pressure greases for clean room and vacuum applications. For example the new Trigel line is specifically formulated to offer a lubrication solution for a wide range of linear motion applications. Please ask for further details.  Grease features include, Temperature range -30°C to 150°C,  Revolutionary multi-complex soap technology, Greatly extended lubrication intervals typically 3 times longer than conventional soap thickened greases, Good corrosion resistance. Some greases are supplied blue in colour for high visibility.

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