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Bearing NRT 850 A (SKF)

Axial-radial cylindrical roller bearings, super-precision NRT 850 A

Bearing number : NRT 850 A

Size (mm) : 850x1095x124

Brand : SKF

Bore Diameter (mm) : 850

Outer Diameter (mm) : 1095

Width (mm) : 124

Bearing dimensions and specification in SKF catalogue:

d - 850 mm

D - 1095 mm

H - 124 mm

d₁ - 1018 mm

C - 37 mm

H₁ - 80.5 mm

J - 890 mm

J₁ - 1055 mm

H - 18 mm

N₁ - 26 mm

N₂ - 18 mm

a - 17 mm

r₁ - min. - 1.5 mm

r₂ - min. - 1.5 mm

Basic dynamic load rating, radial direction - C - 473 kN

Basic static load rating, radial direction - C₀ - 2120 kN

Basic dynamic load rating, axial direction - C - 415 kN

Basic static load rating, axial direction - C₀ - 6400 kN

Limiting speed for grease lubrication - 40 r/min

Limiting speed for oil lubrication - 80 mm/min

Axial Preload - 47 N

Axial unloading force - 103 kN

Frictional moment - C_RL - 300 N·m

axial stiffness - 77 N/micron

radial stiffness - 22.4 N/micron

Moment stiffness - 7011000 kN·m/mrad

Mass bearing - 253 kg

Guideline diameter - 1800 mm

Size - G - M16

Number of bolts - 6

Angle between bolts - 60 °

Size bolts - M16

Pitch - &alfa; - 6 °

Number of bolts - 54

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

Size bolts - M16

Pitch - &alfa; - 6 °

Number of bolts - 58

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

Tightening torque - 284 N·m

Size - M16

Number of bolts - 2

Tags :  SKF , 850x1095x124