Bearing QJ 1056 N2MA/C4 (SKF)

Angular contact ball bearings, four-point contact ball bearings QJ 1056 N2MA/C4

Bearing number : QJ 1056 N2MA/C4

Size (mm) : 280x420x65

Brand : SKF

Bore Diameter (mm) : 280

Outer Diameter (mm) : 420

Width (mm) : 65

Bearing dimensions and specification in SKF catalogue:

d - 280 mm

D - 420 mm

B - 65 mm

d₁ - - 328 mm

D₁ - - 372 mm

a - 245 mm

h - 15 mm

b - 12.55 mm

r₀ - 2.5 mm

r_1,2 - min. - 4 mm

d_a - min. - 298 mm

D_a - max. - 402 mm

r_a - max. - 3 mm

Basic dynamic load rating - C - 585 kN

Basic static load rating - C₀ - 1140 kN

Fatigue load limit - P_u - 25.5 kN

Reference speed - 1400 r/min

Limiting speed - 2400 r/min

Calculation factor - k_a - 0.8

Calculation factor - e - 0.95

Calculation factor - X - 0.6

Calculation factor - Y₀ - 0.58

Calculation factor - Y₁ - 0.66

Calculation factor - Y₂ - 1.07

Mass bearing - 33.5 kg

Designation

Bore Dia, mm

Outer Dia, mm: