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All linear bearing linear guide rail deep groove ball bearing angular contact ball bearing Automatic centering ball bearing cylindrical roller bearing tapered roller bearing spheric roller bearing CARB ring roller bearing ball thrust bearing The cylindrical roller thrust bearing Spherical roller thrust bearing Special application bearing Sensor bearing unit tapered adapter-sleeve withdrawal sleeve locknut SNL bearing block Roller bearing Cross roller bearing With outer spherical ball bearing Rotary support bearing
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spheric roller bearingSpherical roller bearing with return sleeve
d1 35-80mm
Product Parameter
  • Basic size of mm
    d1 55
    D 130
    B 31
  • The basic rated load is kN
    trends C 212
    static state Co 240
  • Fatigue load limit Pu 26.5
  • Rated rotation speed is r/min
    Refer to the speed 4800
    limit speed 6300
  • Mass bearing + return sleeve 2.2
  • model
    bearing *21312EK
    withdrawal sleeve AHX312
  • Dimensions are mm
    d1 55
    d2 ～ 87.8
    D1 ～ 115
    B1 40
    B21) 43
    G M65×2
    G1 8
    b 5.5
    k 3
    r1,2 the min 2.1
  • Shoulder gear and chamfer size mm
    da the max 72
    Da the max 118
    ra the max 2
  • Calculation coefficient
    e 0.22
    Y1 3
    Y2 4.6
    Yo 2.8
Brand introduction
From Germany, made by heart
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tapered adapter-sleeve
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Rotary support bearing
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