Miniature Ball Screw

https://www.vxolinearmotion.com/products/miniature-ball-screw/

Miniature Ball Screws are an efficient and cost-effective solution in a small envelope, ideal for use in small spaces. Ball screw nut assembly range from 4 to 14mm in diameter with leads from 1 to 20mm - all with standard lead accuracies of ±52µm/300mm. Miniature Rolled Ball Screws are ideal for laboratory, semiconductor, and medical applications.