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331945 Double Row Tapered Roller Bearing

Size range:
ID 25.400 mm to 1200.150 mm (1.0000 in. to 47.2500 in.)
OD 30.480 mm to 2460.000 mm (1.2000 in. to 96.8504 in.)
Applications:
Heavy-duty gear drives
Various industrial configurations

TDO design bearings have a double row outer ring and two single inner rings that usually have an intermediate ring between them. Their roller sets are arranged back-to-back (O-arrangement), which enables them to accommodate tilting moments. Design variants include features such as a helical groove in the bore or lubrication grooves in the side faces of the bearing rings.

Features:

High radial load carrying capacity

Accommodate axial loads in both directions

Relatively high stiffness

Accommodate tilting moments

Many variants, including a helical groove in the bore or lubrication grooves in the side faces of the bearing rings

Ready to mount

Specifications:

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Dimensions



d

228.6 mm

Bore diameter

D

488.95 mm

Outside diameter

T

254 mm

Total width

C

152.4 mm

Width of outer ring

d1

≈253 mm

Diameter of shaft abutment

d1

≈400 mm

Diameter of shaft abutment

D1

≈0 mm

Diameter of housing abutment

D1

≈456 mm

Diameter of housing abutment

r1,2

min.6.4 mm

Chamfer dimension of inner ring

r3,4

min.1.5 mm

Chamfer dimension of outer ring

r3,4

min.1.5 mm

Chamfer dimension of outer ring

a

326.405 mm

Distance between pressure points

Calculation data



Basic dynamic load rating

C

3 143 kN

Basic static load rating

C0

4 500 kN

Fatigue load limit

Pu

390 kN

Limiting value

e

0.94

Calculation factor

Y1

0.72

Calculation factor

Y2

1.07

Calculation factor

Y0

0.7

Comparative radial load rating

CF

735 kN

Comparative axial load rating

CFa

669 kN

Thrust factor

K

0.62

Mass

196 kg