Bearing BTW 55 CTN9/SP (SKF)

Angular contact thrust ball bearings, double direction, super-precision BTW 55 CTN9/SP

Bearing number : BTW 55 CTN9/SP

Size (mm) : 55x90x44

Brand : SKF

Bore Diameter (mm) : 55

Outer Diameter (mm) : 90

Width (mm) : 44

Bearing dimensions and specification in SKF catalogue:

d - 55 mm

D - 90 mm

H - 44 mm

d₁ - 75.2 mm

2C - 22 mm

r_1,2 - min. - 1.1 mm

r_3,4 - min. - 0.6 mm

d_a - min. - 68 mm

D_a - min. - 84 mm

D_a - max. - 85 mm

r_a - max. - 1 mm

r_b - max. - 0.6 mm

Basic dynamic load rating - C - 30.2 kN

Basic static load rating - C₀ - 80 kN

Fatigue load limit - P_u - 3.8 kN

Limiting speed for grease lubrication - 7500 r/min

Limiting speed for oil lubrication - 9000 mm/min

Preload - 440 N

Static Axial rigidity - 580 N/micron

G_ref - 4.8 cm

Mass bearing - 0.865 kg

Designation

Bore Dia, mm

Outer Dia, mm: