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The two basic types of linear guides include: • Plain linear bearings — in more casual contexts, sometimes called guide rods • Rolling-element linear bearings — in more casual contexts, sometimes called ball slides These two linear-motion options have similar functions but vastly different design and performance characteristics. In this Design Guide, the editors of Design World explain the parameters employed to properly specify linear bearings — especially those relating to accuracy, life, and preload. Such values communicate the performance and capabilities of linear bearings for optimized sizing, selection, and installation. Look for deep dives on crossed-roller slides, linear bushings, and ball splines in other Design Guide installments. |
Design Guide on Specifying Linear Bearings (Accuracy Preload Life)
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The two basic types of linear guides include: • Plain linear bearings — in more casual contexts, sometimes called guide rods • Rolling-element linear bearings — in more casual contexts, sometimes called ball slides These two linear-motion options have similar functions but vastly different design and performance characteristics. In this Design Guide, the editors of Design World explain the parameters employed to properly specify linear bearings — especially those relating to accuracy, life, and preload. Such values communicate the performance and capabilities of linear bearings for optimized sizing, selection, and installation. Look for deep dives on crossed-roller slides, linear bushings, and ball splines in other Design Guide installments. |
