vxolinearmotion
https://www.vxolinearmotion.com/products/backlash-nut/
VXO lead screws is a linear motion control component combines the speed, accuracy, efficiency, repeatability, quiet operation, lubrication retention, load capacity, and compactness. Our lead nuts are available in a standard threaded or flanged mounting configuration, and anti-backlash nuts provide the best positional repeatability.