Product Overview
The feed system moves the cutting tool or workpiece along machine axes. It includes a ball screw, linear guides, servo motors, and bearings. It determines positioning accuracy and feed rate.
Types and Features
Ball screw drives use recirculating bearings for precise motion with low backlash. Linear guides include profile rails and box-way slides. Linear motor drives provide highest speed with zero backlash. Rack-and-pinion systems serve large machines.
How to Choose
Select based on accuracy, speed, load, and travel length. Ball screws with profile guides suit standard CNC machines. Linear motors benefit high-speed centers. Rack-and-pinion works for large gantry machines.
Replacement and Installation
Remove covers and disconnect the motor coupling. Support the screw during removal. Clean surfaces, inspect bearings, align the screw to rails, and calibrate for accuracy.
Maintenance Tips
Lubricate at specified intervals. Inspect seals and way covers for contamination. Check backlash with a dial indicator. Monitor servo current for friction signs.
