Precision Lead Screws from Automotion
A precision lead screw helps translate rotary motion into linear motion. It is the perfect choice where an application dictates that (1) a standard lead screw has too much play due to standard manufacturing tolerances, and (2) ball screws are also unsuitable either due to cost or the environment they are to be used in. These precision lead screws have an accuracy to rival ball screws. Made from stainless steel with an acetal resin nut (with no ball bearings in the nut to get clogged up), these lead screws are a great choice for use in "dirty" or corrosive environments which may affect the running of ball screws.
As specialists in linear motion systems we offer you a choice of materials and sizes. So whether you need lightweight aluminium rails for use in aviation applications or stainless steel components for when exposure to water or corrosive chemicals is a factor, our knowledgable technical engineers are always on hand to provide assistance.
Make sure you download a free Linear Motion Handbook here and utilise our free CAD to help you save time planning your projects.
Looking for commercial trapezoidal lead screws and nuts? Click here to view the standard range!
Fully stainless steel (AISI/SUS grade 304; A2) high helix lead screws, for applications where corrosion resistance is a priority.
Resin nuts suitable for use with our L1349 stainless steel precision lead screw.
Stainless steel (AISI/SUS grade 304; A2) with resin nuts. High helix style designed for minimal backlash.
Associated Products
Linear motion systems with accessories from Automotion Components. See our linear guideways page.
We stock a wide range of linear shafts and bearings with the associated ball bushings and carriages. See our linear shafts and bearings page.
For more technical information, please see our precision lead screw technical page or get in touch with our technical sales team for assistance.
Features
Precision lead screws
The high lead thread form maximises linear motion and minimises shaft rotation. The close tolerance, free running nuts are individually matched to their lead screws and are ideal for miniature applications requiring rotary to linear, or linear to rotary actuation.
Anti-backlash nuts
For applications requiring precision positioning there is now a newly patented Anti-backlash nut. This device, consisting of only three components, utilises the constant force of a compression spring to push two halves apart. This action eliminates any play (backlash) which exists between the internal thread of the nut and the external screw thread.
To ensure accuracy and repeatability the nut can be fine tuned through the use of many available spring constants, to meet any preload design requirements.
Lead screw specification High precision lead screw
Lead error ±0,2mm/300mm
Repeatability 0,01mm
Straightness 0,03mm/100mm
Backlash 0,08mm (zero when using anti-backlash nut)
Temperature range -30°C to +90°C
General Guidance
- These are precision, high helix lead screws from stainless steel (304 grade)
- We can cut length to suit and/or machine the ends to your requirements
- They have an accumulative lead error of ±0.20/300mm (C10 grade)
- The actual clearance depends on the nut selected L1350 standard flanged nut or L1351 antibacklash nut
- Nuts are very smooth running with little friction. They are made from plastic resin (PPS).
- The anti-backlash nuts are longer than the standard length nuts as they incorporate a spring pushing the two halves of the unit apart.
