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Since 1977!

Highest Precision!

Best Quality

       +
Engineering
Support!

Our engineering expertise is available
to provide
technical support
for the products
we sell; and assist
our customers
in solving
their engineering
problems.


 

 

The Fundamental  Operation of  SEL Series Rack & Pinion Linear Encoder or Resolver Measuring Systems
(navigational structure)

   
Page 1
Rack and Pinion Mesh Geometry

Page 2

Long Life & Trouble-free Operation

Page 3
Precision, Fine Resolution & Unlimited Length of Travel

Page 4
Integral Pinion Transducers

Page 5
Backlash Elimination

Page 6
Angular Measuring Rack Concept

Page 7
Mounting Details for Angular Rack & Pinion

Page 8
Angular Measuring Rack on G. A. Gray (Gidding & Lewis) VTM Machine

   



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The Fundamental Operation ...


Angular_Rack.jpg (11682 bytes)


ribbon.gif (302 bytes)High Accuracy Angular Measuring
       Rack
 

A unique feature of helicoidal rack is that it provides correct gear action even when mounted on a curved rather than straight surface.   Angular measuring rack occupies a minimum of axial space allowing rotary tables to be designed for greatest stability.  Robust hardware and accurate measurement feedback and control is assured by the use of SEL Precision Series Rack and Pinion Systems.

Our Angular Measuring Rack (AMR) system is supplied as a rack set to suit a specified diameter.  The range is from 570 mm upwards with close intervals between possible working diameters.  When included in an initial design concept, the AMR gives particular benefits.  The measuring radius is a large percentage, usually from 50 to 80 percent, of the maximum working radius, producing high repeatability.

A very practical benefit to the design of, for instance, a rotary or indexing table is that no axial space is needed below the table.  This makes it lower and stiffer, along with other parts of the machine, increasing machine working rates and, again, repeatability.


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5143 Electric Avenue
Hillside, IL 60162
708-449-5700 (Phone)
708-449-5703 (Fax)


E-Mail: schlenkent@aol.com

 

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