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• Air Bearings
  
  • Applications
    
    • Computer Disk Testing & Pack Writing
    • Roundness & Flatness Testing
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  • Spindles
    
    • BLOCK-HEAD® Spindles
      
      • Model 3R BLOCK-HEAD®
      • Model 4R BLOCK-HEAD®
      • Model 4R 2.25 BLOCK-HEAD®
      • Model 4B BLOCK-HEAD®
      • Low-Profile 4R & 4B BLOCK-HEAD®
      • Model 10R BLOCK-HEAD®
      • Model 10B BLOCK-HEAD®
      • Model 10R-606 BLOCK-HEAD®
      • 23R BLOCK-HEAD®
    • ISO Spindles
    • Liquistatic Spindles
    • Motorized Spindles
      
      • 4R Twin-Mount
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    • Custom Spindles
  • Slides
    
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• Precision Sub-Contract Manufacturing
  
  • Machining
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• Accessories
  
  • D4-A Dryer-Filter-Regulator
  • Humidity Alarm
  • Gf-5 Precision-Ground Flatstones
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• Equipment List
• Rolling-Element Bearings
• Bearing Analysis
  
  • BLOCK-HEAD® Bearing Analyzers
• Useful Information
  
  • Air Supply
  • BLOCK-HEAD® Specifications - English
  • BLOCK-HEAD® Specifications - Metric
  • Commercial Terms & Conditions of Sale
  • Converting a BLOCK-HEAD® Spindle to the Pneumo-Lock Mode
  • D4-A Dryer-Filter-Regulator Operator’s Manual
  • Error Motion and Microinch Machining
  • Fixture Design
  • Groove Compensation of Externally-Pressurized Air Bearing Films
  • Humidity Alarm Manual
  • Motorization
  • Safety
  • Why BLOCK-HEAD® Spindles are the Best in the World
  • Price List
• History
  
  • Established 1946
    
    • Harold Arneson
    • Ted Arneson
  • Litening Hair Dryers 1946
  • Zero-Max 1947
  • Nautilus Project 1957
  • Rochester Plant 1958
  • Honeywell Space Flight Simulator 1964
  • Gravity Research 1968
  • Satellite Imaging of the Earth 1976
  • Hubble Space Telescope 1984
  • Liquid Mirror Telescope 1995
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• Contact Us
  
  • Locations & Area Hotels
    
    • Creekside
    • 4601
    • Rochester
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