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2. Linear-motion bearing - Wikipedia

   en.wikipedia.org/wiki/Linear-motion_bearing

   A linear-motion bearing or linear slide is a bearing designed to provide free motion in one direction. There are many different types of linear motion bearings. Motorized linear slides such as machine slides, X-Y tables , roller tables and some dovetail slides are bearings moved by drive mechanisms.

3. Linear stage - Wikipedia

   en.wikipedia.org/wiki/Linear_stage

   Zaber motorized linear stage. A linear stage or translation stage is a component of a precise motion system used to restrict an object to a single axis of motion. The term linear slide is often used interchangeably with "linear stage", though technically "linear slide" refers to a linear motion bearing, which is only a component of a linear stage.

4. X-Y table - Wikipedia

   en.wikipedia.org/wiki/X-Y_Table

   XY tables are flat surfaces mounted on ball bearing slides or roller slides with multiple linear bases and are composed of forcers and platens. [1] The forcer glides over the platen on frictionless air bearings and moves continuously in a linear motion across the platen. To create multiple axis, linear bases are often stacked on top of one ...

5. Plain bearing - Wikipedia

   en.wikipedia.org/wiki/Plain_bearing

   A plain bearing, or more commonly sliding contact bearing and slide bearing (in railroading sometimes called a solid bearing, journal bearing, or friction bearing [2]), is the simplest type of bearing, comprising just a bearing surface and no rolling elements. Therefore, the part of the shaft in contact with the bearing slides over the bearing ...

6. High performance positioning system - Wikipedia

   en.wikipedia.org/wiki/High_performance...

   A typical linear recirculating bearing rail, of a high performance positioning stage, has a stiffness on order of 100-300 N/um. Such a performance is required in semiconductor process equipment, electronics assembly lines , numerically controlled machine tools , coordinate-measuring machines , 3D Printing , pick-and-place machines , drug ...

7. Wisconsin shooter contacted California man planning separate ...

   www.aol.com/news/wisconsin-shooter-contacted...

   (Reuters) -The teenage girl who killed a teacher and fellow student at her Wisconsin school this week was in contact via text message with a California man who was planning his own mass shooting ...