Technical data

81211T2

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 55 mm
    D 90 mm
    d1 90 mm
    D1 57 mm
    T 25 mm
    Dc1 55 mm
    Dc 90 mm
    Dw 11 mm
    Lw 11 mm
    rs min 1 mm
    Cage assembly reference K81211T2
    Bearing ring (inner ring) WS WS81211
    Bearing ring (outer ring) GS GS81211
    Ea 83.4 mm
    Eb 60.1 mm
    Mass 0.61 kg
    Cage assembly mass 0.19 kg
    Bearing ring (inner ring) WS mass 0.21 kg
    Bearing ring (outer ring) GS mass 0.21 kg
    Brand NTN
  • Product performance

    Product performance
    Ca 121 kN
    C0a 340 kN
    Nlim (grease) 830 Tr/min
    Nlim (oil) 3,300 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 6.52 Hz
    Characteristic outer ring frequency, BPF0 7 Hz
    Characteristic inner ring frequency, BPFI 7 Hz
  • Abutment dimensions

    Abutment dimensions
    da min 83 mm
    Db max 61 mm
    ras max 1 mm

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