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    Detailed information:
    Feature: it is mainly used for grinding the electric spindle round in high speed and high precision bearings, in order to adapt to the requirement of electric spindle, bearing internal parameters for the special optimization design
    B70 series, B72 series, the contact Angle is 15 °
    Maintains a: outer ring guide phenolic resin maintains a (not a sign)
    Roller materials: steel ball (no sign), ceramics ball (HQ1)
    High precision series are only for the P4 grade, P2 level
    High speed, ultra-high speed, apply to the constant pressure the load, the oil mist or oil-gas lubrication
    Later can choose ceramic ball

    1000部韩国床激
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