Technical data

81224

Complete thrust bearing

Needle roller bearing, thrust cylindrical roller bearing, 812 series

Needle roller bearing, thrust cylindrical roller bearing, 812 series
  • Visual(s)

    Visual(s)
  • Product definition

    Product definition
    d 120 mm
    D 170 mm
    d1 170 mm
    D1 123 mm
    T 39 mm
    Dc1 120 mm
    Dc 170 mm
    Dw 15 mm
    Lw 15 mm
    rs min 1.1 mm
    Cage assembly reference K81224
    Bearing ring (inner ring) WS WS81224
    Bearing ring (outer ring) GS GS81224
    Ea 160 mm
    Eb 129.2 mm
    Mass 2.69 kg
    Cage assembly mass 0.73 kg
    Bearing ring (inner ring) WS mass 0.98 kg
    Bearing ring (outer ring) GS mass 0.98 kg
    Brand NTN
  • Product performance

    Product performance
    Ca 264 kN
    C0a 930 kN
    Nlim (grease) 430 Tr/min
    Nlim (oil) 1,700 Tr/min
    Min operating temperature, Tmin -20 °C
    Max operating temperature, Tmax 120 °C
    Characteristic cage frequency, FTF 0.5 Hz
    Characteristic rolling element frequency, BSF 9.64 Hz
    Characteristic outer ring frequency, BPF0 10.5 Hz
    Characteristic inner ring frequency, BPFI 10.5 Hz
  • Abutment dimensions

    Abutment dimensions
    da min 159 mm
    Db max 129 mm
    ras max 1 mm

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