Injection Molding Design Guide

Guide for high quality and cost-effective plastic injection molding.

Hydraulics & Pneumatics

For design and manufacturing engineers involved in buying or specifying fluid power components and systems.

CNC Machining Design Guide

Optimize your designs, reduce machining time, and lower your costs.

Wind Systems

Towers, turbines, gearboxes; processes for shaping and finishing component parts.

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Linear Bearings Introduction

Linear bearings are used primarily where something needs to be moved along a straight line with high accuracy. In other words, the object needs to only translate in one direction, and possibly move back to its starting position with high repeatability.

The implications for robotic pick-and-place are obvious, as are uses for optical test fixturing and calibration. The robotic uses of linear bearings have opened up a huge market for the devices in recent years. There is a plethora of manufacturers of the devices, so much so that standardization is sometimes a problem. The three primary types of linear bearings are ball, crossed-roller, and slide bushing.


Common Linear Bearings