Bearing 31311-A (FAG)

Tapered roller bearings 31311-A

Bearing number : 31311-A

Size (mm) : 55x120x31.5

Brand : FAG

Bore Diameter (mm) : 55

Outer Diameter (mm) : 120

Width (mm) : 31,5

Bearing dimensions and specification in FAG catalogue:

d - 55 mm

D - 120 mm

T - 31,5 mm

a - 39 mm

B - 29 mm

C - 21 mm

C_{a min} - 4 mm

C_{b min} - 10,5 mm

D_{a max} - 110 mm

D_{a min} - 94 mm

D_{b min} - 113 mm

d₁ - 88 mm

d_{a max} - 68 mm

d_{b min} - 65 mm

r_{1, 2 min} - 2,5 mm

r_{3, 4 min} - 2 mm

r_{a max} - 2,5 mm

r_{b max} - 2 mm

m - 1,57 kg / Weight

C_r - 123000 N

C_0r - 139000 N / Static load rating (radial)

e - 0,83

Y - 0,73

Y₀ - 0,4

C_ur - 16400 N / Fatigue limit load, radial

n_G - 5900 1/min / Limiting speed

n_B - 4100 1/min / Reference speed

Main dimensions to DIN ISO 355 / DIN 720, separable, adjusted or in pairs

Designation

Bore Dia, mm

Outer Dia, mm: