Selecting The Right Contact Wheel For The Job
Quick Change Tire and Hub Assembly Quick Change Tire and Hub Assembled
Standard Quick Change Tire and Hub Assembly 


Selection of the right contact wheel is fully as important as the choice of abrasive belt. Grinding and Polishing
supplies a full line of standard Quick Change contact wheels to match - exactly - your grinding and finishing
requirements.  Use the information on this page to select the right wheel for most applications.  
Call on our grinding experts for specific information or help with special applications.

Some things to consider:
  • Harder wheels are used for faster cutting and produce a coarser finish
  • Smaller wheel diameters are used for faster cutting and coarser finish
  • Serrated wheels permit faster cut and result in a longer belt life (serrations allow the belt to cool)
  • Higher speeds produce better finishes
  • For a given material hard wheels remove more stock than soft wheels

Contact Wheel Faces
Contact Wheel Plain Face
Plain Face
Contact Wheel Serrated Face
Standard Serration
1:1 Land-to-Groove
Contact Wheel Cog Serrated
Cog Serration
Narrow Lands -
Wide Grooves
(More Aggressive)
Contact Wheel X Serrated
Cog with "Serr X"
(Most Aggressive)


Contact Wheel Selector Chart
Wheel Faces
Types
Duro
(Hardness)
Recommended Uses
Plain or Serrated
Super Soft
Sponge
15
For fine polishing of wood or for extreme contour sanding
Plain or Serrated
Soft
20-30
For polishing, fine finishing, or contour polishing of metal
and wood
Plain or Serrated
Medium Soft
30-40
For wood or metal work, stampings, die castings,
forgings and contour grinding
Serrated
Medium
50-60
General purpose, standard serration for stock removal
and semi-finishing
Serrated
Medium Hard
60-70
Standard or cog serration for stock removal, fast cutting,
grinding on stainless steel and other hard metals
Serrated
Hard
70-80
Standard or cog serration for grinding grey iron
and other metals
Serrated
Extra Hard
80-90
Cog serration for heavy grinding on hardened steel,
hard welds, scale removal and forgings

Contact Wheels for Roll Grinding
Roll Grinding Contact Wheel SAR
TYPE "SAR"
Serrated Aluminum Wheel with Rubber fill.
Roughing wheel only for aggressive grinding
applications. This wheel is directional and
can only be run in one direction.
Roll Grinding Contact Wheel PAR
TYPE "PAR"
Plain Aluminum Wheel with Rubber fill.
This has been found to be best for
producing very close tolerances. It
should be noted that the lathe must be
in excellent condition.  Otherwise, use
Type "PDDR".
Roll Grinding Contact Wheel SDDR
TYPE "SDDR"
Serrated Dual Density Rubber.
This wheel will produce tolerances nearly
equal to type "PAR" but a better finish is
achieved.  This wheel is directional and
can only be run in one direction.
Roll Grinding Contact Wheel PDDR
TYPE "PDDR"
Plain Dual Density Rubber.
This wheel is used where a good finish is
needed with moderate stock removal and
close tolerance.  This is the most commonly
used wheel.
Roll Grinding Contact Wheel PR
TYPE "PR"
Plain Rubber.
A smooth face wheel, 70 to 90
durometer (specify) for applications
requiring the use of diamond or
structured abrasive belts. This wheel
can also be serrated (Type "SR") for
general purpose grinding.
Roll Grinding Contact Wheel PA
TYPE "PA"
Plain Aluminum Face.
For grinding soft rubber rolls.
Dressing The Contact Wheel -
IT IS IMPORTANT that all roll grinding contact wheels be "dressed" to the roll before grinding.  This assures squareness of the contact
wheel to the roll. Each time the grinder is removed, it is best to re-dress the wheel.

TO DRESS:
Place the grinder on the lathe and look for the best area of the roll.  Be sure the grinder is as square as possible. Clean the roll so pressure
sensitive abrasive can be placed on the roll. This should go at least 3/4 way around the roll and be 50 to 80 grit. Start the grinder and
move the contact wheel in until it makes contact with the abrasive. Move the grinder back-and-forth completely across the abrasive both
ways. This must be repeated until the entire surface of the contact wheel has been dressed. Don't plunge cut.



WEAR EYE PROTECTION - KEEP HANDS CLEAR WHEN USING GRINDING EQUIPMENT


Recovering Used Wheels
Type "SAR" and "PAR" wheels have aluminum lands which, when worn down, can't be replaced.  They can be made into Type "SDDR",
 "PDDR", and "PR" wheels at some savings. The "SDDR", "PDDR", and "PR" type wheels can be recovered at considerable savings. It is
strongly recommended that a spare contact wheel be ordered with the grinder.  Delivery on replacement wheels may require 6 to 8 weeks.  


Roll Grinding Wheels Brochure
Click on image to view/download complete Roll Grinding Wheel Brochure