Precision Ball Screws By Hmt Machine Tools Ltd.

Higher Efficiency:
Since sliding friction is replaced by rolling friction, efficiency is greater than 90% and the driving torque is less than onethird of that of conventional screws.
Lesser Heat Generation:
Even high load causes minimun heating up which means an improvement of positioning accuracy.
No Stick-slip:
Substituting a rolling contact for the sliding metal to-metal contact minimizes starting friction and eliminates the stick-slip tendency when a slow , linear motion is required in machine tool slide applications thus resulting in a tremendous increase in tool life.
Higher Service Life:
Due to the rolling of balls in hardened grooves very little wear occurs over the life of Ball Screws.
High Precision & Rellability:
All HMT Precision Ball Screws are ground and assembled and inspected under a strict process and temperature control.
Precise Positioning:
High Positioning accuracy is possible even at low speeds .Maximum Axial Stiffness, Ball Screws can easily be adjusted backlash-free and pre-loaded for increasing the axial stiffness, response and repeatability of positioning.
High Power Transmission:
Transmission of greater forces of maximum driving power with low loss at minimum mounting dimensions.