31309/CL7CDFC25Matched tapered roller bearings arranged face-to-face

SKU: 31309/CL7CDFC25Matched tapered roller bearings arranged face-to-face

Matched tapered roller bearings arranged face-to-face (X-arrangement, load lines diverge towards the bearing axis) accommodate high radial loads and axial loads in both directions. The precision manufactured intermediate ring between the outer rings enables a defined internal clearance or preload to be achieved when mounted. Matched tapered roller bearings are typically used in gearboxes, hoisting equipment, rolling mills, and machines in the mining industry.

ID:192298

SKF performance class
SKF Explorer

Dimensions - 31309/CL7CDFC25

Dimensions

d
45 mm
Bore diameter
D
100 mm
Outside diameter
T
54.5 mm
Total width
2B
50 mm
Width of inner rings
b
10.5 mm
Width of lubrication groove
K
8.5 mm
Diameter of lubrication hole
r3,4
min. 1.5 mm
Chamfer dimension
r5
min. 0.6 mm
Chamfer dimension

Abutment dimensions - 31309/CL7CDFC25

Abutment dimensions

da
max. 57 mm
Diameter of shaft abutment
Da
min. 79 mm
Diameter of housing abutment
Da
max. 92 mm
Diameter of housing abutment
Ca
min. 4 mm
Minimum width of space required in housing on large side face
ra
max. 2 mm
Radius of fillet
rc
max. 0.6 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
194 kN
Basic static load rating C0
204 kN
Fatigue load limit Pu
24.5 kN
Reference speed
4 000 r/min
Limiting speed
6 700 r/min
Limiting value e
0.83
Calculation factor Y1
0.81
Calculation factor Y2
1.2
Calculation factor Y0
0.8

Mass

Mass
1.98 kg

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