Bevel gear ball screw jacks housing is made of aluminum alloy with surface oxidation treatment. Compared with other cast irons, it is lighter in weight, higher in strength, and easier to dissipate heat. These bevel ball jacks are especially suitable for high speed and high-frequency operation. Because of no self-locking function, a machine bevel ball jack needs a brake motor or external locking device to hold the position. High-quality Taiwan brand ball screw, Alloy steel input shafts, Grinding-grade spiral bevel gears One shaft, two shafts, three shafts, four shafts available.