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7004AC

 

BRZB offers a board range in the 70 series regarding dimensions, suitable RPM, and load capabilities.

Standard spindle bearings
High RPM suitability and rigidity
High cost-efficiency and reliability
Standard contact angles of 15° and 25°
Reference RPM factor n x dm = 1.7 x 106 mm/min
High load rating
Also available as hybrid ball bearings
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Technical specification

  • Basic Properties

    Contact Angle α 25 °
    Inner Diameter d 20 mm
    Outer Diameter D 42 mm
    Width B 12 mm
    Chamfer dimension r min 0.60 mm
      r1min 0.30 mm
    Distance Side Face to Pressure Point a 13.20 mm

  • Load Data

    Basic Dynamic Load Rating C 10.60 kN
    Basic Static Load Rating C0 6.25 kN
    Limiting Speed Grease 32,300 r/min
      Oil-air 48,400 r/min
    Fatigue Load Limit Pu 5.450 kN
    Calculation Factor for Equivalent Loads  f0 14.000  

  • Preload & Rigidity

    Light A 80 N
      Cax 64 N/μm
    Medium B 240 N
      Cax 90 N/μm
    Heavy C 480 N
      Cax 113 N/μm

  • Mass

    Mass m 0.067 kg
Industries
7004AC

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Machine Tools

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Solar Power

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Semiconductor Equipments

As Industry 4.0 and Artificial Intelligence continue to evolve, the semiconductor industry is experiencing unprecedented demand.

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