FAG Bearing

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FAG Bearing
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Bearing 30311-A Bearing 30311-A

Tapered roller bearings 30311-A

Bearing number : 30311-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 - 25 mm

B - 29 mm

C - 25 mm

Ca min - 4 mm

Cb min - 6,5 mm

Da max - 110 mm

Da min - 104 mm

Db min - 111 mm

d1 - 84,7 mm

da max - 71 mm

db min - 65 mm

r1, 2 min - 2,5 mm

r3, 4 min - 2 mm

ra max - 2,5 mm

rb max - 2 mm

m - 1,8 kg / Weight

Cr - 151000 N

C0r - 173000 N / Static load rating (radial)

e - 0,35

Y - 1,74

Y0 - 0,96

Cur - 20600 N / Fatigue limit load, radial

nG - 6200 1/min / Limiting speed

nB - 4500 1/min / Reference speed

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

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