Technical data

81209T2

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 45 mm
    D 73 mm
    d1 73 mm
    D1 47 mm
    T 20 mm
    Dc1 45 mm
    Dc 73 mm
    Dw 9 mm
    Lw 9 mm
    rs min 1 mm
    Cage assembly reference K81209T2
    Bearing ring (inner ring) WS WS81209
    Bearing ring (outer ring) GS GS81209
    Ea 68 mm
    Eb 48.8 mm
    Mass 0.31 kg
    Cage assembly mass 0.1 kg
    Bearing ring (inner ring) WS mass 0.1 kg
    Bearing ring (outer ring) GS mass 0.1 kg
    Brand NTN
  • Product performance

    Product performance
    Ca 82 kN
    C0a 222 kN
    Nlim (grease) 1,000 Tr/min
    Nlim (oil) 4,100 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 6.49 Hz
    Characteristic outer ring frequency, BPF0 7 Hz
    Characteristic inner ring frequency, BPFI 7 Hz
  • Abutment dimensions

    Abutment dimensions
    da min 68 mm
    Db max 49 mm
    ras max 1 mm

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