FAG Bearing

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FAG Bearing
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Bearing 31304 Bearing 31304

Tapered roller bearings 31304

Bearing number : 31304

Size (mm) : 20x52x16.25

Brand : FAG

Bore Diameter (mm) : 20

Outer Diameter (mm) : 52

Width (mm) : 16,25

Bearing dimensions and specification in FAG catalogue:


d - 20 mm

D - 52 mm

T - 16,25 mm

a - 16 mm

B - 15 mm

C - 11 mm

Ca min - 3 mm

Cb min - 5 mm

Da max - 45 mm

Da min - 40 mm

Db min - 48 mm

d1 - 37,3 mm

da max - 27 mm

db min - 27 mm

r1, 2 min - 1,5 mm

r3, 4 min - 1,5 mm

ra max - 1,5 mm

rb max - 1,5 mm

m - 0,174 kg / Weight

Cr - 30500 N

C0r - 29500 N / Static load rating (radial)

e - 0,73

Y - 0,82

Y0 - 0,45

Cur - 3350 N / Fatigue limit load, radial

nG - 14900 1/min / Limiting speed

nB - 8400 1/min / Reference speed

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

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