—Centerless grinding makes it possible to grind both external and
internal cylindrical surfaces without requiring the workpiece to be mounted
between centers or in a chuck.
—This eliminates the requirement of center holes in some workpieces and the necessity
for mounting the workpiece, thereby reducing the cycle time.
—Two wheels are used. The larger one operates at regular
grinding speeds and does the actual grinding. The smaller wheel is the
regulating wheel. It is mounted at an angle to the plane of the grinding wheel.
—The regulating wheel controls the rotation and
longitudinal motion of the workpiece and usually is a plastic- or rubber-bonded
wheel with a fairly wide face.
—The workpiece is held
against the work-rest blade by the cutting forces exerted by the grinding wheel
and rotates at approximately the same surface speed as that of the regulating
wheel.
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