Danaher Motion's Thomson Super Ball Bushings are now available in metric sizes of 16, 20, 25, 30, 40, and 50 mm. These bearings have a coefficient of friction as low as 0.001 so designers can specify smaller, less expensive motors, belts, gears, and ball screws. They are drop-in replacements for existing applications and are dimensionally interchangeable with competitive and legacy applications. Features include a self-aligning capability of up to 0.5º that automatically compensates for inaccuracies in base flatness or carriage machining, deliver acceleration rates as high as 150 m/s2, and steady state travel speeds up to 3 m/s without the derating factors commonly required with linear guides. They are available in adjustable, closed, and open configurations. Double lip integral wipers keep contamination out and retain lubrication to maximize travel life. Lightweight, wear-resistant polymer retainers and outer sleeves reduce inertia and noise.