Description. VAN NORMAN CRANKSHAFT GRINDER . Model 111, Serial Number CS-5780. SPECIFICATIONS. CAPACITY: 24" swing x 84" centers (609.6mm x 2,133.6mm) WORKHEAD: Speed, 20, 40, 60 RPM. 1-Chucks 8" diameter, 3-Jaws, Rotates & Graduated 360 degrees. Mounted on adjustable slide. Spindle diameter 4" .