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NTN 4T-30307 Bearing

d - 35 mm

D - 80 mm

T - 22.75 mm

B - 21 mm

C - 18 mm

ra1 max. - 1.5 mm

a - 17 mm

r min. - 2 mm

r1 min. - 1.5 mm

da min. - 45 mm

Da min - 70 mm

Da max. - 71.5 mm

db max. - 45 mm

Db min. - 74 mm

ra max. - 2 mm

Sa - 3 mm

Sb - 4.5 mm

Weight - 0.54 Kg

Basic dynamic load rating (C) - 75 kN

Basic static load rating (C0) - 77 kN

(Grease) Lubrication Speed - 5 000 r/min

(Oil) Lubrication Speed - 6 600 r/min

Calculation factor (e) - 0.31

Calculation factor (Y0) - 1.05

Calculation factor (Y2) - 1.9

  • #number
  • ID(内径)
  • OD(外径)
  • B(厚度)