THK BLK2020DZZ-2877 Full-Ball Rolled Ball Screw Assembly

The THK BLK2020DZZ-2877 is a full-ball rolled ball screw assembly designed for high-speed rotary-to-linear motion, delivering low friction and high mechanical efficiency, with a 20 mm screw shaft diameter, a 20 mm lead, and an overall length of 2,877 mm to support long-stroke positioning and integration with automated transfer equipment, material handling systems, and packaging machinery. The ZZ double-end seals on the end-cap recirculation ball nut help limit contaminant ingress and retain lubricant, preload is none for standard BLK-series accuracy, and the unit is manufactured from hardened alloy steel with lubrication compatibility for grease or oil. Technical ratings include a dynamic load rating of 11.1 kN (BLK2020-3.6 configuration), a static load rating of 24.7 kN, and a DN value of 70,000, making it suitable for automated conveyors, transfer units, packaging equipment, and other factory automation gear requiring reliable high-speed linear motion; common replacements are THK BLK2020DZZ-3000, THK BLK2020DZZ-2500, and the BLK2525DZZ series ball screws.