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Some of the following links are in PDF file format. You will need the free Adobe Acrobat Reader software to view and print them.

  • 1-1/4" Hole Through BLOCK-HEAD® Models 4R & 4B
  • Air supply
  • BLOCK-HEAD® Operator's Manual
    (in PDF file format)
  • BLOCK-HEAD® Specifications - English
  • BLOCK-HEAD® Specifications - Metric
  • Commercial Terms & Conditions of Sale 151195A
  • Converting a BLOCK-HEAD® Spindle to the Pneumo-Lock Mode
  • D4-A Dryer-Filter-Regulator Operator’s Manual
  • E.P. Bearings drawing
    (in PDF file format)
  • Error Motion and Microinch Machining
  • Expertly Upgraded Spindles
  • Fixture Design
  • Groove Compensation of Externally-Pressurized Air Bearing Films
  • Humidity Alarm Operator’s Manual
  • Improving Rotational Accuracy
  • Motorization
  • "Precision Spindles Metrology" by Eric R. Marsh
  • Price List
  • Product Description
  • Safety
  • Spindle Features
  • Why BLOCK-HEAD® Spindles are the Best in the World
Professional Instruments Company
7800 Powell Road • Hopkins, MN 55343 USA
Phone (952) 933-1222 • Fax (952) 933-3315 • pico@airbearings.com
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