Bearing NKX 12 (SKF)

Needle roller / thrust rolling bearings NKX 12

Bearing number : NKX 12

Size (mm) : 12x21x23

Brand : SKF

Bore Diameter (mm) : 12

Outer Diameter (mm) : 21

Width (mm) : 23

Bearing dimensions and specification in SKF catalogue:

F_w - 12 mm

D - 21 mm

C - 23 mm

C₁ - 9 mm

C₂ - 6.5 mm

d - 12 mm

D₁ - 26.1 mm

r_1,2 - min. - 0.3 mm

d_a - min. - 21.7 mm

r_a - max. - 0.3 mm

r_b - max. - 0.3 mm

d_i - 9 mm

F - 12 mm

B_i - 16 mm

Basic dynamic load rating, radial direction - C - 9.1 kN

Basic static load rating, radial direction - C₀ - 12 kN

Basic dynamic load rating, axial direction - C - 10.4 kN

Basic static load rating, axial direction - C₀ - 16.6 kN

Fatigue load limit, radial direction - P_u - 1.4 kN

Fatigue load limit, axial direction - P_u - 0.62 kN

Reference speed - 9000 r/min

Limiting speed - 13000 r/min

Mass bearing - 0.038 kg

Inner ring - IR 9x12x16

Designation

Bore Dia, mm

Outer Dia, mm: