一種圓柱形裝置,包含三個或更多個長方形球迴路,並配有一個保持器以引導球沿正確的路徑移動,專門設計用於滑動直線運動軸,以最大限度地減少摩擦和磨損。
self-aligning alignment type, 4 bearing ball quantity, straight bore shape, 0.4270 inches minimum and 0.4470 inches maximum distance between retaining rings, snap ring-groove mounting features provided