THK Co., Ltd. 611859 Ball Screw Assembly Rotary To Linear Motion

The THK 611859 Ball Screw Assembly delivers precise rotary-to-linear motion with a 1-inch diameter screw shaft and an overall length of approximately 39 inches. This high-efficiency linear drive uses a recirculating-ball design to minimize drive torque while delivering smooth, accurate positioning and long service life, even under demanding industrial workloads. It features a hardened alloy steel screw shaft and ball nut, offers high precision linear positioning, and has configuration-dependent backlash; lubrication is compatible with grease or oil, and mounting requires a machine-specific end-support configuration. Common applications span CNC machines, automated manufacturing equipment, material handling systems, packaging machinery, and precision positioning systems, with additional suitability for semiconductor equipment, automated assembly lines, and other repeatable, high-efficiency motion tasks. Maintenance teams, OEM machine builders, and system integrators rely on the 611859 for repairs, retrofits, replacement, and new machine construction. The product is identified as THK Brand, Part Number 611859, Product Type Ball Screw Assembly, Motion Type Rotary to Linear Motion.