linear bearings

Linear motion is the most basic of all motion. Linear ball bearings provide linear movement in one direction.A roller bearing, carries a load by placing rolling balls or rollers between two bearing rings called races. These bearings are comprised of an outer ring and several rows of balls retained by cages. Roller bearings are manufactured in two styles: ball slides and roller slides.

A profile rail’s performance comes from its inherent shape and through precise grinding of the rail ball tracks. The race on which the balls ride in the rail and carriage is only slightly larger in radius than the balls themselves. This geometry cradles the balls as they flatten slightly under load, which expands the contact area between them and the race and results in high load capacity. Substituting cylindrical rollers for ball bearings can roughly double load capacity in the same sized package.