312979 DFour-row cylindrical roller bearing

SKU: 312979 DFour-row cylindrical roller bearing

Four-row cylindrical roller bearings are designed to accommodate very heavy radial loads in combination with medium to high speeds. The SKF assortment includes many designs and variants, such as bearings with a cage and full complement bearings. Depending on the configuration of the outer and inner rings, the bearings are available in locating as well as non-locating designs.

ID:187076

Design variant/feature
BC4.10/W33WI
Bore type
Cylindrical

Dimensions - 312979 D

Dimensions

d
760 mm
Bore diameter
D
1 080 mm
Outside diameter
B
790 mm
Total bearing width over inner ring(s)
C
790 mm
Total bearing width over outer ring(s)
D1
974 mm
Outer ring shoulder diameter
F
846 mm
Raceway diameter inner ring
b
22.3 mm
Width of annular groove
K
12 mm
Diameter lubrication hole (outer ring)
r1,2
min. 7.5 mm
Corner radius/chamfer inner ring
r3,4
min. 7.5 mm
Chamfer dimension on the outer ring

Calculation data

Basic dynamic load rating C
23 800 kN
Basic static load rating C0
65 500 kN
Fatigue load limit Pu
4 400 kN
Calculation factor kr
760

Mass

Mass bearing
2 440 kg

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