Cylinderized Gage Balls

In some cases, there are obstructions built into the parts to be tested that would prevent a completely spherical ball from reaching the surface to be evaluated. Grinding a cylindrical stripe of reduced diameter on the outside diameter of the ball will provide the required clearance that will allow access to the spherical surfaces of interest.

Cylinderized Ball
Photograph of Cylinderized Balls
Cylinderized Gage Balls
Figure #1., Cylinderized Ball
Cylinderized Ball on a stem
Figure #2., Cylinderized Ball on a Stem or Handle

A complete ball can have a cylindrical stripe ground on it as shown in Figure #1, or a ball on a stem or handle can have the cylinder ground on it, as shown in Figure #2.

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