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Bearing NRT 580 A (SKF)

Axial-radial cylindrical roller bearings, super-precision NRT 580 A

Bearing number : NRT 580 A

Size (mm) : 580x750x90

Brand : SKF

Bore Diameter (mm) : 580

Outer Diameter (mm) : 750

Width (mm) : 90

Bearing dimensions and specification in SKF catalogue:

d - 580 mm

D - 750 mm

H - 90 mm

d₁ - 700 mm

C - 30 mm

H₁ - 60 mm

J - 610 mm

J₁ - 720 mm

H - 11.4 mm

N₁ - 18 mm

N₂ - 11.4 mm

a - 11 mm

r₁ - min. - 1 mm

r₂ - min. - 1 mm

Basic dynamic load rating, radial direction - C - 229 kN

Basic static load rating, radial direction - C₀ - 965 kN

Basic dynamic load rating, axial direction - C - 285 kN

Basic static load rating, axial direction - C₀ - 3550 kN

Limiting speed for grease lubrication - 60 r/min

Limiting speed for oil lubrication - 120 mm/min

Axial Preload - 25 N

Axial unloading force - 55 kN

Frictional moment - C_RL - 140 N·m

axial stiffness - 43.5 N/micron

radial stiffness - 18.6 N/micron

Moment stiffness - 1838000 kN·m/mrad

Mass bearing - 89 kg

Guideline diameter - 1250 mm

Size - G - M12

Number of bolts - 6

Angle between bolts - 60 °

Size bolts - M10

Pitch - &alfa; - 7.5 °

Number of bolts - 42

Number of bolts omitted at removal thread position - 6, 60° apart

Size bolts - M10

Pitch - &alfa; - 7.5 °

Number of bolts - 46

Number of bolts omitted at retaining bolts position - 2, 180° apart

Tightening torque - 68 N·m

Size - M10

Number of bolts - 2

Tags :  SKF , 580x750x90