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 7304B
    Paired duplex 7304BDB
    Paired duplex 7304BDF
    Paired duplex 7304BDT
  • Boundary dimensions (mm)
    d 20
    D 52
    B 15
    r(min) 1.1
    r1(min) 0.6
  • Limit speed (RPM)
    grease 11000
    Oil lubrication 15000
  • Rated load (single row)
    Cr(N) 17300
    Cor(N) 9650
    Cr(kgf) 1770
    Cor(kgf) 985
  • Location (a) 22.6
  • Installation dimension (mm)
    da(min) 27
    Da(max) 45
    ra(max) 1
  • (Reference) 0.15
  • Limit speed of paired duplex type (RPM)
    grease 9000
    Oil lubrication 12000
  • Paired duplex
    Back to back configuration (A0) 45.2
    Face to face configuration (mm) 15.2
  • Rated load (paired duplex type)
    Cr(N) 28200
    Cor(N) 19300
    Cr(kgf) 2870
    Cor(kgf) 1970
  • Installation dimension of paired duplex type (mm)
    db(1)(min) 25
    Db(1)(max) 47
    rb(1)(max) 0.6