Machine Design

Product Spotlight: Ball-Bushing Bearings

With a coefficient of friction as low as 0.002, Thomson Super Ball Bushing bearings permit the use of smaller, less-expensive motors, belts, gears, and ball screws in place of high-friction plain bearings.

A self-aligning capability up to 0.5° automatically compensates for inaccuracies in base flatness or carriage machining. The bearings come in adjustable, closed, and open configurations and feature acceleration rates to 150 m/sec″; steady-state travel speeds to 3 m/sec without derating factors; double-lip integral wipers that keep contaminants out and retain lubrication; and lightweight, wear-resistant polymer retainers and outer sleeves that reduce inertia and noise. The bearings are available in metric sizes 16, 20, 25, 30, 40 and 50 mm.

Danaher Motion
1500 Mittel Blvd.
Wood Dale, IL 60191
(540) 633-3400

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