Type:

Straight Wheel
   

Grinding   wheels consist of abrasive grains bonded together by a matrix of resins,   epoxy, rubber, metal, and vitrified glass materials. Straight wheels have a   simple, flat disc shape without any recesses, flaring or cups. ANSI   B74.2 Type 1 wheels fall under this group.  Type 1A1,   1A8 are designations for straight superabrasive wheels with a   straight face and no recess. 1A1R wheels are recessed for cut-off   or slot cutting applications. 1A8, 1B1, 1E1, 1EE1, 1F1, 1FF1, 1V1,   1V1P are straight superabrasive wheels with modified faces (beveled, included   angle or radius).
   

Blank /   Custom
   

Blank   or custom wheels are designed for customization to a user's shape   requirements.
   

Cone / Plug
   

Small   bonded abrasives wheel with a cone, cylinder or   bullet shape that is mounted on a pin or mandrel for portable   grinder applications. ANSI B74.2 Types 16, 17, 17R, 18, 18R, 
  and 19. 
 
    Type 16 - Cone wheels with a curved side and a nose radius 
 
  · Type 17, 17R - Cone wheels with straight sides and   optionally a nose radius 
 
  · Type 18, 18R - Plug wheels with a cylindrical shape and   either a square or curved grinding end 
 
  · Type 19 - Combination cone and plug shaped wheels
   

Cylinder
   

Cylinder wheels   are long wheels with a simple, can shape without any recesses or   cups. The length of the wheel is equal or greater than the thickness of the   wheel.  ANSI B74.2 Type 2 wheels fall under this group. Cylinder   wheels are mounted (bolted or cemented) to a backing plate,   which drives the wheel.
   

Depressed   Center
   

Grinding   wheels with a depressed center, which helps keep the mounting hardware out of   the grinding process. ANSI type 27, 28 and 29 wheels fall under this   category. ANSI type 27 wheels have a flat configuration with a depressed   center.  ANSI type 29 wheels fold back away from the workpiece and   wheel center while ANSI type 28 wheels project out in front of the wheel   center toward the workpiece. Depressed center wheels are applied is   rough offhand grinding or snagging of castings, weld beads, flash or parting   lines or defects in metal parts.
   

Dish Wheel
   

Wheels   with a dish or saucer shape such as ANSI type 12 wheels. Types 12V9,   4A2P, 12A2 and 15V9 are examples of superabrasive dish   shapes.
   

Flaring Cup
   

Cups   have a cup or bowl shape.  Type 11 wheels are   often called “flaring cups” since the sides flare   out. Types 11V9, 11A2 and 12A2 are examples   of superabrasive flaring cup shapes.
   

Mounted Point / Abrasive   Burr
   

Very   small bonded abrasives or superabrasive wheels with a round ball, point,   cone, cylinder or bullet shape that are mounted on a pin or   mandrel for portable die grinder and deburring applications. Types DW,   IG, IGJ, IGA, IGI and IGR are examples   of superabrasive mounted point shapes.
   

Recessed /   Relieved
   

Recessed   wheels having an ANSI 5 or 11 shape fall under this category.    Type 5 wheels are only recessed on one side. Type 7 wheels are recessed   on both sides.
   

Ring / Disc   Wheel
   

Ring   wheels have a donut or toroid shape.  Ring or disc grinding   wheels are mounted (bolted or cemented) to a backing plate,   which drives the wheel. Superabrasive type 2A2 wheels fall into this   category.  Conventional bonded abrasive type 35, 36 and 37 fit into this   category.
   

Straight Cup
   

Cups   have a cup, bowl or double cup shape.  ANSI type 6 wheel are referred to   as straight cups, since they have a cylindrical configuration.   Types 6A2, 6A9, 6A2C and 6A2H are examples   of superabrasive straight cup shapes.  ANSI type 9   or superabrasive type 9A1 wheels have a double cup shape.
   

Tapered Body
   

Tapered   body wheels have a thicker cross section at the bore, which becomes thinner   or tapers toward the outer diameter. ANSI Type 3 or 4 wheels   fall under this group.  Superabrasive types 14A1and  3A1 wheels   fall into this category.
   

Specialty / Other
   

Other   specialty, proprietary or patented abrasive or abrasive product.
   

Superabrasive Wheel?
   

Superabrasives   and diamond tools consist of grinding wheels, wheel dressers, single point   tools and other products utilizing diamond or cubic boron nitride (CBN)   abrasive grain.
   

Outer Diameter (OD):
   

The   OD is the outer diameter of the abrasive product.
   

Bore ID / Shank Diameter:
   

The   bore is the inner diameter of the center mount of the abrasive product.    The bore is used to mount or hold the abrasive on a spindle or mandrel.   The shank diameter is the diameter of the integral shank, pin,   shaft or mandrel on mounted points or wheels.
   

Thickness:
   

The   wheel face thickness or the overall thickness of the abrasive products such   as stones, segments, hand pads, etc.