THK
linear motion systems, are unique motion systems in which linear
motion is supported by rolling contact elements. These linear motion
systems can best be described as a motion system which uses the
rotational motion principle of a deep grooved ball bearing. This
principle makes it the easiest to use and most economical of all
rotational motion bearings. Since the balls employed as rotating
elements are set in raceways having an almost equal radius to the
balls that rotate in them, the contact between the balls and the
circular arc raceway is changed from conventional point contact to a
line contact. This line contact system means that THK LM Guides can
handle 13 times the work load and last 2,200 times longer than
conventional linear guide ways (round shafts) of the same ball
diameter. |