Product Profile of Internal Grinding Spindles
Precision International offers high frequency internal grinding spindles, in the new generation series GNS from Gamfior, Italy. These spindles have the rotor produced with very special, high-efficiency electrical laminations, so as to provide more power within a compact body, and using hybrid bearings of ABEC9 quality. All components are hardened and ground; and all rotating parts are dynamically balanced, to less than G 0.4 residual unbalance. The radial runout and the axial runout at the quill-mounting seat of the shaft is within 2 m and 1 m respectively. These spindles are available both, grease-packed [with reduced maximum speed] or with air-oil lubrication. Spindles with OD 170 mm can also be used for external grinding. These spindles are ideal for use in bore grinding or track-grinding of bearing rings; for the grinding of auto-components; fuel injection parts, gears, and others.
