November 22, 2021
THK has added ball screw diameters ∅32 to ∅63 and lead sizes 5 mm to 40 mm for its high-speed, compact precision ball screw Model SDAN-V lineup, expanding the possible combinations from the current 20 to a total of 47.
The Model SDAN-V is a compact precision ball screw with an external nut diameter in accordance with ISO standards. New technology is utilized inside the ball screw nut to achieve an ideal ball circulation structure, enabling usage in high-speed applications by promoting smoother rotational motion. In addition, the double nut system, in which a spacer is placed between the two nuts, provides a preload with less than zero clearance in the axial direction of the ball screw, resulting in a structure that minimizes displacement under axial loads and provides high rigidity.
For the Model SDAN-V, seven screw shaft diameters (∅32, ∅36, ∅40, ∅45, ∅50, ∅55, ∅63) and ten lead sizes (5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 16 mm, 20 mm, 25 mm, 30 mm, 40 mm) have been newly added, mainly for NC machine tools and precision machines. Driven by demand from equipment manufacturers and in response to the diverse needs of users, the number of models has increased from 20 to 47, and the product lineup has evolved to become more diverse and attractive.
THK contributes to the compactness, rigidity, and high-speed performance of a wide range of equipment, from general industrial machinery to precision machinery and large, high-precision machine tools.