brushless motor spindle

Advanced DSP Digital Control Electric 2D / 3D Engraving Multi Spindle High Speed 24000rpm 1. Structural features 1) High speed electric main bearing all adopt the C-class high-speed angular contact ball bearing, axis sets of loading, Improve spindle in the high-speed rotation supporting stiffness and precision grinding. 2) Before driving, rotation of the shaft by hand.Spindle high speed rotation caused by temperature rise, use of cooling liquid circulating system to eliminate