循环滚珠/滚柱元件

Recirculating ball or roller elements are precision-engineered components within linear bearing systems that circulate through a closed loop between the bearing housing and guide rod. These elements replace sliding contact with rolling contact, significantly reducing friction, wear, and energy consumption while enabling high precision, smooth motion, and load capacity in linear guidance applications.

These elements operate on the principle of rolling friction. Balls or rollers are contained within a recirculating path inside the bearing block. As the bearing moves along the guide rod, the elements roll between the bearing raceways and the rod surface, then return to the starting point through a return channel, creating continuous circulation. This converts potentially high sliding friction into low rolling resistance.