Bearing 7280 BM (SKF)

Angular contact ball bearings, single row 7280 BM

Bearing number : 7280 BM

Size (mm) : 400x720x103

Brand : SKF

Bore Diameter (mm) : 400

Outer Diameter (mm) : 720

Width (mm) : 103

Bearing dimensions and specification in SKF catalogue:

d - 400 mm

D - 720 mm

B - 103 mm

d₁ - - 532 mm

d₂ - - 486 mm

D₁ - - 591 mm

a - 287 mm

r_1,2 - min. - 6 mm

r_3,4 - min. - 3 mm

d_a - min. - 423 mm

D_a - max. - 697 mm

D_b - max. - 707 mm

r_a - max. - 5 mm

r_b - max. - 2.5 mm

Basic dynamic load rating - C - 728 kN

Basic static load rating - C₀ - 1500 kN

Fatigue load limit - P_u - 26.5 kN

Reference speed - 900 r/min

Limiting speed - 950 r/min

Calculation factor - k_r - 0.08

Calculation factor - k_a - 1.2

Calculation factor - e - 1.14

Calculation factor - X - 0.35

Calculation factor - Y₀ - 0.26

Calculation factor - Y₁ -

Calculation factor - Y₂ - 0.57

Mass bearing - 190 kg

Designation

Bore Dia, mm

Outer Dia, mm: