When shafts 1 and 2 rotate in the same direction, ring blanks a, which are to be ground, slide axially toward the grinding wheel. Pins b serve for rigidly setting cylindrical shaft 1. Tapered shaft 2 is set up and adjusted by screw devices 3 and 4 (not shown in detail). Cylindrical shaft 1 rotates about fixed axis A-A, and tapered shaft 2 rotates about fixed axis B which is parallel to axis A-A.
$3448$CF,SF$