BT30 Taper Spindle Unit 7:24 Mechanical Power Head&Drawbar for Drilling Milling. Axle head size: Dia 25mm 50mm long.
Spindle Material: 20CrmnTi, carburizing heat treatment. 3000rpm for drilling : Deep groove ball bearing. 6000rpm for drilling : 60071, 70072, 60062. 8000rpm for drilling : High speed deep groove bearing.
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