Technical data

81218J

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 90 mm
    D 135 mm
    d1 135 mm
    D1 93 mm
    T 35 mm
    Dc1 90 mm
    Dc 135 mm
    Dw 14 mm
    Lw 14 mm
    rs min 1.1 mm
    Cage assembly reference K81218J
    Bearing ring (inner ring) WS WS81218
    Bearing ring (outer ring) GS GS81218
    Ea 126.7 mm
    Eb 97.9 mm
    Mass 1.82 kg
    Cage assembly mass 0.54 kg
    Bearing ring (inner ring) WS mass 0.64 kg
    Bearing ring (outer ring) GS mass 0.64 kg
    Brand NTN
  • Product performance

    Product performance
    Ca 213 kN
    C0a 680 kN
    Nlim (grease) 530 Tr/min
    Nlim (oil) 2,100 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 8.02 Hz
    Characteristic outer ring frequency, BPF0 8.5 Hz
    Characteristic inner ring frequency, BPFI 8.5 Hz
  • Abutment dimensions

    Abutment dimensions
    da min 126 mm
    Db max 97 mm
    ras max 1 mm

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