With a variable frequency electric spindle bearing, relatively low prices, are easy to maintain, is the preferred design of CNC machine tool spindle Assembly. For example, IBAG-company HF170.4 A20K frequency spindle is mounted within a typical induction motor spindle, motor rotor and spindle is not finished. Front and rear bearings are double-row radial thrust bearing, front bearing inner diameter ф 65mm and contact angle is 25 ° high-precision ball bearings, spring preload. Standard configuration, bearing lubrication using oil mist lubrication system, however, when you reduce the maximum speed or with grease lubrication. Maze of sealed air gap sealing of the bearing.



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