30244T170/DB11C170Matched tapered roller bearings arranged back-to-back

SKU: 30244T170/DB11C170Matched tapered roller bearings arranged back-to-back

Matched tapered roller bearings arranged back-to-back (O-arrangement, load lines diverge towards the bearing axis) accommodate high radial loads, axial loads in both directions, and tilting moments. The precision manufactured intermediate rings between the innner and outer rings enable 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:198981

Dimensions - 30244T170/DB11C170

Dimensions

d
220 mm
Bore diameter
D
400 mm
Outside diameter
T
170 mm
Total width
d1
295.99 mm
Shoulder diameter of inner ring
C
134 mm
Width of outer rings
l
26 mm
Width of spacer ring
K
0 mm
Diameter of lubrication hole
r1,2
min. 5 mm
Chamfer dimension
r5
min. 1.5 mm
Chamfer dimension
a
173.118 mm
Distance between pressure points

Abutment dimensions - 30244T170/DB11C170

Abutment dimensions

db
min. 240.5 mm
Diameter of shaft abutment
Db
min. 371 mm
Diameter of shaft abutment
Cb
min. 18 mm
Minimum width of space required in housing on small side face
ra
max. 5 mm
Radius of fillet
rc
max. 1.5 mm
Radius of fillet

Calculation data

Basic dynamic load rating C
1 816 kN
Basic static load rating C0
2 800 kN
Fatigue load limit Pu
255 kN
Reference speed
950 r/min
Limiting speed
1 600 r/min
Limiting value e
0.43
Calculation factor Y1
1.6
Calculation factor Y2
2.3
Calculation factor Y0
1.6

Mass

Mass
77.7 kg

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