TYPE 1 - Straight wheel. Peripheral grinding wheel having a diameter, thickness and hole.

Type 2 - Cylinder wheel. Side grinding wheel having a diameter, thickness and wall- wheel is mounted on the diameter, or a similar wheel mounted in a chuck or on a plate. 

*Type 5 - Wheel, recessed one side. Peripheral grinding wheel having one side straight or flat and the opposite side recessed. A recessed wheel allows a wider faced grinding wheel to be used when the available mounting thickness (E) is less than the required overall thickness (T). The recess allows grinding clearance for the nut and flange.

*Type 6 - Straight-cup wheel. Side grinding wheel having a diameter, thickness and hole with one side straight or flat and the opposite side recessed. This type, however, differs from Type 5 in that the grinding is performed by the wall (W). The wall dimension (W)takes precedence over the diameter of the recess as an essential intermediate dimension to describe this shape type.

*Type 7 - Wheel, recessed two sides. Peripheral grinding wheel having both sides recessed to allow grinding clearance for both flanges of recessed so that an unusually wide faced wheel may be mounted when the available mounting thickness(E) is less than the overall thickness(T).

Type11-Flaring-cup wheel(Print Required). Side grinding wheel having a wall flared or tapered outward from the back. Wall thickness at the back is normally greater than at grinding face (W).

Type 12-Dish wheel (Print Required) Side grinding wheel known as a dish, differing from a Type 11 in that Type 12 always has a (U) dimension. The (W) dimension of a Type 11 becomes the (A)dimension of a Type 12. The grinding may be performed by the (U) face.

Type 13-Saucer wheel (Print Required).Peripheral grinding wheel known as a saucer, differing form a Type 12 in that the cross-section is equal throughout (U=E). The face is always half-round with R=U/2.

DISHED AND/OR RECESSED WHEELS

A dished side is a depression in the side of a wheel which is tapered from a radial flat at the periphery (A) to an inside flat(K) or recess diameter (P). 

*Type 20 - Wheel, dished one side. Peripheral grinding wheel having one side straight or flat and the other side dished to a flat.

*Type 21 - Wheel, dished two sides. Peripheral grinding wheel having both sides dished to a flat.

*Type 22 - Wheel, dished one side, recessed other side. Peripheral grinding wheel having one side recessed and the other side dished to a flat.

*TYPE 23 - Wheel, dished and recessed same Peripheral grinding wheel having one side straight or flat and the other side dished to a recess.

*Type 24 - Wheel, dished and recessed one side, recessed other side .Peripheral grinding wheel having one side recessed and the other side dished to a recess.

*Type 25 - Wheel, dished and recessed one side, dished other side Peripheral grinding wheel having one side dished to a flat and the other side dished to a recess.

*Type 26 - Wheel, dished and recessed both sides Peripheral grinding wheel having both sides dished to a recess.

Note: Arrows indicate grinding surface. *Recess shall be at least 1/3 the wheel diameter.