Harbor Manufacturing

Precision Grinding - ID and OD

Small volume prototyping and low-medium volume precision grinding has been a staple of Harbor Manufacturing, Inc.'s business since 1977.  Harbor's precision grinding services are performed in house at our  manufacturing facility in Tinley Park, IL.

Types of precision grinding parts include:

  • Shafts - single or multiple od's
    • Gear Boxes - we'll grind the shaft right inside the gear box. No tear downs.
  • Spindles
  • Roller Plates
  • Thrust Plates
  • Journals
  • Collets
  • Wheel Drives
  • Shear Guides
  • Dies
  • Gears - spur, helical, worm, etc
  • and much more 


  • Almost any alloy including
    • Carbon
    • Tubing
    • Powder Metal
    • Stainless Steel
  • Ceramics

Capabilities include

  • OD grinding up to 72" in length
  • OD grinding up to 16" capacity
  • ID grinding up to 6" capacity
  • Parts up to 6500 lbs.


Tight tolerance grinding is where we excel. Our operators hold  ID, OD and length tolerances to .0002" and flatness specs to .0003"- all with c.p.k.'s of over 1.33.

Combine this level of precision grinding with 24-hour turnaround and you have a company that is committed to bringing you the highest level of service around the clock. It's not easy to be customer driven, but we work harder to make sure our customers are taken care of.

give us a call now at 708.614.6400 or request a quote online and find out why  our customers use Harbor for all of their precision grinding needs.


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