Product Catalog

Self-aligning Ball Bearings
Bearings for Ball Screw Supports
Cylindrical Roller Bearing For Pulley
Stainless Steel Bearings

Product Parameters

  • Bearing number
    Single column 71904E
    Paired duplex 71904EDB
    Paired duplex 71904EDF
    Paired duplex 71904EDT
  • Boundary dimensions (mm)
    d 20
    D 37
    B 9
    r(min) 0.3
    r1(min) 0.15
  • Limit speed (RPM)
    grease 24000
    Oil lubrication 32000
  • Rated load (single row)
    Cr(N) 6600
    Cor(N) 4050
    Cr(kgf) 675
    Cor(kgf) 410
  • Location (a) 11.1
  • Installation dimension (mm)
    da(min) 22.5
    Da(max) 34.5
    ra(max) 0.3
  • (Reference) 0.036
  • Limit speed of paired duplex type (RPM)
    grease 19000
    Oil lubrication 26000
  • Paired duplex
    Back to back configuration (A0) 22.3
    Face to face configuration (mm) 4.3
  • Rated load (paired duplex type)
    Cr(N) 10700
    Cor(N) 8100
    Cr(kgf) 1090
    Cor(kgf) 825
  • Installation dimension of paired duplex type (mm)
    db(1)(min)
    Db(1)(max) 35.8
    rb(1)(max) 0.15