日本中西NAKANISHI主轴NR-3060S SpindleE3000Air-Speed NR-3060SShort spindle (Max. 60,000 min⁻¹) Code Number7859 ProductsDownload Type Spindle Outer Diameter φ30 mm Max. rpm 60,000 min-1 Speed 19,000 min-1 (Using AM-3020r) Spindle accuracy Within 1 μm Collet CHK Group (ø0.5–ø6.35 mm) Weight 260 g Standard accessories Collet nut (K-265) Wrench (12×14): 2 pcs.・(22×27): 1 pc. Options Collet (CHK Group): ø0.5–ø6.35 mm *Collet is sold separately. Metal Saw Arbor (KCH-03): ød (I.D.) × under ø30 mm (O.D.) Grindstone Arbor (AGM-03): Grindstone I.D. ø5.0 mm Grindstone Flange (EGF-19): applicable grindstone I.D. ø19.05 × O.D. ø40 × 7 mm