🔩 Ballscrew (Surplus) – Precision Linear Motion Component
A ballscrew surplus refers to a precision ball screw assembly sold as excess, surplus, or salvaged industrial stock. These components are often removed from machinery, unused spare parts, or overstock inventory and sold at lower prices, making them ideal for DIY CNC machines, automation systems, robotics, and mechanical projects.
A ball screw is a mechanical device that converts rotational motion into smooth linear motion using recirculating ball bearings between the screw shaft and nut. This design reduces friction and allows very high efficiency and precision compared to traditional lead screws.
✨ Key Features
⚙️ High-precision linear motion mechanism
🔩 Low friction ball-bearing system for smooth operation
📈 High mechanical efficiency (often ~90%)
🛠 Suitable for CNC machines, robotics, and automation
💰 Surplus units are cost-effective compared to new industrial parts
🔧 Often sold with ball nut, shaft, and end machining
📝 Typical Specifications
(Specifications vary depending on the specific surplus unit)
Type: Precision ball screw assembly
Main Components: Screw shaft, ball nut, recirculating ball bearings
Efficiency: Up to ~90% mechanical efficiency
Function: Converts rotary motion to linear motion
Lead / Pitch: Varies depending on model
Diameter: Common sizes from 10 mm to 40 mm+
Length: From a few centimeters to several meters
Material: Hardened alloy steel
Applications: CNC machines, linear actuators, robotics, automation systems
🔧 Common Applications
✔ CNC routers, milling machines, and 3D machines
✔ Industrial automation and motion control
✔ Linear actuators and positioning systems
✔ Robotics and XY-axis motion systems
✔ DIY mechanical engineering projects