Bearing BTM 120 ATN9/HCP4CDB (SKF)

Angular contact thrust ball bearings, double direction, super-precision BTM 120 ATN9/HCP4CDB

Bearing number : BTM 120 ATN9/HCP4CDB

Size (mm) : 120x180x54

Brand : SKF

Bore Diameter (mm) : 120

Outer Diameter (mm) : 180

Width (mm) : 54

Bearing dimensions and specification in SKF catalogue:

d - 120 mm

D - 180 mm

H - 54 mm

d₁ - 147.7 mm

D₁ - 165 mm

r_1,2 - min. - 2 mm

r_3,4 - min. - 1 mm

d_a - min. - 129 mm

D_a - max. - 175 mm

r_a - max. - 2 mm

r_b - max. - 1 mm

d_n - 144.1 mm

Basic dynamic load rating - C - 58.5 kN

Basic static load rating - C₀ - 146 kN

Fatigue load limit - P_u - 5 kN

Limiting speed for grease lubrication - 6500 r/min

Limiting speed for oil lubrication - 7700 mm/min

Preload class A - 600 N

Preload class B - 1800 N

Static Axial rigidity, Preload class A - 419 N/micron

Static Axial rigidity, Preload class B - 634 N/micron

G_ref - 40 cm

Mass bearing - 4.2 kg

Designation

Bore Dia, mm

Outer Dia, mm: