This feature uses springs, split gears, or preloaded nuts to maintain constant contact between driving and driven teeth or threads. By removing the dead space where no motion transfers upon reversing direction, it ensures high precision in positioning systems and prevents destructive hammering under reversing loads.
Heard on the job
We need to specify an antibacklash nut on the Z-axis lead screw to stop the cutter from chattering during plunge moves.
Insider tip
Antibacklash mechanisms increase friction and wear, so they should only be specified where positional accuracy is strictly required.
Also heard as
- anti-backlash