Linear Ball Bearing, System of Measurement Inch, Inside Diameter 5/8 in, Outside Diameter 1 1/8 in, Self-Alignment Self-Aligning, Overall Length 1 1/2 in, Dynamic Load Capacity 620 lbf, Material Delrin, Series Super Smart, Steady State Speed 10 fps, Maximum Operating Temperature 185 Degrees F, Minimum Operating Temperature 0 Degrees F, Ball Bearing Type Closed, Inside Diameter Tolerance +/-0.001 in, Accelerated Speed 450 fps