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B500DD/MB500DD Series

B500DD/MB500DD Series

Extra Light Torque Tube Type
Aircraft Control Bearing

  • Manufactured to AS27646 per AS7949
  • Extra light duty
  • Single row ball bearing
  • PTFE coated fiberglass seals
  • All external surfaces except bore and seals are cadmium plated
  • Pre-lubricated (see grease specifications)
  • This series is dimensionally interchangeable with the unshielded B500 series
  • Specifications

    Bearing
    Part

    #

    MS
    27646-
    Bore


    (in.)

    Outside 
    (in.)
    Inner Ring 

    (in.)
    Outer Ring 
    (in.)
    Inner Land  Inner Ring  Outer Ring  Radial Limit Load  Thrust Limit Load 
    +.0007
    -.0007
    +.0000
    -.0005
    +.0000
    -.0010
    +.0000
    -.0005
    +.000
    -.005
    +.0000
    -.0025
    +.000
    -.005
    +.000
    -.005
    d1
    (in.)
    c1*
    (in.)
    c*
    (in.)
       
    B538DD -38 0.6250 1.0625 0.281 0.250 0.777 0.015 0.015 3280 1500
    B539DD -39 0.7500 1.1875 0.281 0.250 0.895 0.015 0.015 3750 1700
    B540DD -40 0.8750 1.3125 0.281 0.250 1.016 0.015 0.015 4220 1900
    B541DD -41 1.0625 1.5000 0.281 0.250 1.216 0.015 0.015 5000 2200
    B542DD -42 1.3125 1.7500 0.281 0.250 1.451 0.015 0.015 5950 2700
    B543DD -43 1.5625 2.0000 0.281 0.250 1.702 0.015 0.015 6880 3200
    B544DD -44 1.8125** 2.2500*** 0.281 0.250 1.970 0.015 0.015 7980 3600
    B545DD -45 2.0625** 2.6250*** 0.281 0.250 2.286 0.015 0.015 9220 4000
    B546DD -46 2.3125** 2.8750*** 0.281 0.250 2.527 0.015 0.015 10150 4400

     

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