Bearing QJ 304 MA (SKF)

Angular contact ball bearings, four-point contact ball bearings QJ 304 MA

Bearing number : QJ 304 MA

Size (mm) : 20x52x15

Brand : SKF

Bore Diameter (mm) : 20

Outer Diameter (mm) : 52

Width (mm) : 15

Bearing dimensions and specification in SKF catalogue:

d - 20 mm

D - 52 mm

B - 15 mm

d₁ - - 27.5 mm

D₁ - - 40.8 mm

a - 25 mm

r_1,2 - min. - 1.1 mm

d_a - min. - 27 mm

D_a - max. - 45 mm

r_a - max. - 1 mm

Basic dynamic load rating - C - 32 kN

Basic static load rating - C₀ - 21.6 kN

Fatigue load limit - P_u - 0.93 kN

Reference speed - 18000 r/min

Limiting speed - 24000 r/min

Calculation factor - k_a - 1.1

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 - 0.18 kg

Designation

Bore Dia, mm

Outer Dia, mm: