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Product Catalog

Cylindrical Roller Bearing

Inquiry

6404N 6404NR 6404-ZN 6404-ZNR

Principal dimensions (mm)
  • d: 20
  • D: 72
  • B: 19
  • r 1,2 min: 1.1
  • r s min: 0.5
Basic load ratings (kn)
  • Cr: 31.10
  • Cor: 15.20
Speed ratings(r/min)
  • Grease: 10000
  • Oil: 13000
Bearing No.
  • N: 6404N
  • NR: 6404NR
  • -ZN: 6404-ZN
  • -ZNR: 6404-ZNR
Snap Ring(mm)
  • No.: NR72
  • D 2 max: 78.6
  • f: 1.70
Snap Groove(mm)
  • D n max: 68.81
  • b min: 1.90
  • a max: 3.28
  • r o max: 0.60
Fitting dimension (mm)
  • d a min: 26.50
  • D a max: 65.5
  • D b min: 80
  • b a min: 2.2
  • C a max: 4.98
  • r a max: 1.0