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CNC raceway grinder for automobile hub bearing outer ring
CNC raceway grinder for automobile hub bearing outer ring

CNC raceway grinder for automobile hub bearing outer ring

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CNC raceway grinder for automobile hub bearing outer ring

  • These series are mainly used for grinding outer raceways of the 1st,2nd and 3rd generations automobile hub bearings and double-row angular contact ball bearings.

    Main features:
    1. Adopting Japan MITSUBISHI full digital AC servo-control system.
    2. Electoromagnetic centerless cIamps are used and the speed of workpiece shaft can be adjustable by varlable frequency. A micro-adjusting device is equipped in workpiece support.
    3. Electric spindle is used for grinding wheel shaft with variable speed in order to realize the high speed grinding at 60m/s.
    4. Diamond dressing wheel.
    5. Compulsive manipulator can automatically load and unload, which is reliable and easy for adjustment.

    Machining accuracy:
    1. Workpiece O.D.(mm) φ50-φ120
    2. Workpiece width(mm)20-50
    3. Dimension deviation(mm)±0.008
    4. Roundness(mm)0.002(O.D.roundness≤0.001mm)
    5. Groove paraIIeIism(mm)0.005
    6. Rouqhness Ra(um)0.32
    7. Concentricity(mm)0.003
    8. Parallelism from bottom of groove(mm)0.002
    9. Roughcast allowance 0.30-0.50
    10. Cycle time (taking DAL4074一C/01 for example):55-65 second/piece.

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