Anti backlash nut spring loaded circle and rectangle nut leadscrew for CNC 8mm threaded rod lead screw for 3D printer
This T8 anti-backlash brass nut is designed for use with an 8mm trapezoidal lead screw (TR8), making it perfect for CNC machines, 3D printers, and linear motion applications.
- The spring-loaded T8/TR8 anti-backlash brass nut designed to reduce play and improve positioning accuracy on 8mm trapezoidal lead screws.
- The anti-backlash mechanism maintains constant contact on the thread to minimize wobble and backlash, delivering smoother, more precise movement—ideal for 3D printer Z-axis upgrades and CNC linear motion assemblies.
- Made from durable brass for long wear life, this TR8 anti-backlash lead screw nut is available in round (circle) or rectangular block styles (as per selection).
- The flange with M3 mounting holes makes installation simple on common CNC frames and 3D printer brackets, including many Ender/CR series style Z-axis setups.
Specifications
- Model: TR8 Anti-Backlash Nut
- Material: Brass (golden finish)
- Thread: 8mm Trapezoidal
- Lead Options: 1-start, 2-start, 4-start
- Pitch: 2mm | Lead: 4mm
- Small Diameter: 16mm | Large Diameter: 22mm
- Mounting Holes: 3mm
Features
- Spring-loaded anti-backlash design reduces play for smoother motion
- For 8mm T8/TR8 trapezoidal lead screws
- Ideal for 3D printer Z-axis and CNC Z-axis assemblies
- Brass construction for durability and reduced thread wear
- Round or rectangular nut style options (select variant)
- Flange mounting with M3 holes for easy installation
Advantages
- Reduces Backlash – Spring-loaded design maintains contact with the lead screw threads, helping minimize unwanted play.
- Improves Positioning Accuracy – Reduced backlash provides more consistent and repeatable linear movement.
- Smoother Z-Axis Motion – Helps provide stable vertical movement in 3D printers and CNC systems.
- Durable Brass Construction – Offers good wear resistance and reliable performance for repeated motion.
Applications
- 3D Printer Z-Axis – Used to reduce backlash and improve consistency of vertical movement.
- CNC Machines – Suitable for X, Y, or Z-axis linear motion where compatible T8 lead screws are used.
- Engraving Machines – Helps provide controlled and repeatable positioning.
- Linear Actuators – Used in screw-driven push, pull, lifting, and positioning mechanisms.
Package Includes
1 Set of T8 Anti-Backlash Nut (Round / Rectangular Block) – as per selection.








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