Bearing 21307 CCK + H 307 (SKF)

Spherical roller bearings, on an adapter sleeve 21307 CCK + H 307

Bearing number : 21307 CCK + H 307

Size (mm) : 30x80x21

Brand : SKF

Bore Diameter (mm) : 30

Outer Diameter (mm) : 80

Width (mm) : 21

Bearing dimensions and specification in SKF catalogue:

d₁ - 30 mm

D - 80 mm

B - 21 mm

d₂ - - 47.2 mm

d₃ - 52 mm

D₁ - - 65.6 mm

B₁ - 35 mm

B₄ - 9 mm

r_1,2 - min. - 1.5 mm

d_a - max. - 47 mm

d_b - min. - 39 mm

D_a - max. - 71 mm

B_a - min. - 7 mm

r_a - max. - 1.5 mm

Basic dynamic load rating - C - 79.2 kN

Basic static load rating - C₀ - 72 kN

Fatigue load limit - P_u - 8.2 kN

Reference speed - 7300 r/min

Limiting speed - 9500 r/min

Calculation factor - e - 0.28

Calculation factor - Y₁ - 2.4

Calculation factor - Y₂ - 3.6

Calculation factor - Y₀ - 2.5

Designation

Bore Dia, mm

Outer Dia, mm: