TQO bearings BT4B 334031/HA4C1800 is directly mounted and comprised of two double inner races, two single and one double outer race, with an inner race spacer and two outer race spacers. Slots in the inner race spacer permit lubricant to flow from the bearing chamber to the roll neck.
The inner race spacers are hardened to minimize face wear.
1 Dimensions of Four row tapered roller bearings BT4B 334031/HA4C1800
d 1001 mm
D 1360 mm
B 800 mm
T 800 mm
d1 ≈ 1070 mm
D1 ≈ 1238 mm
r1,2 min. 12 mm
r3,4 min. 12.7 mm
Calculation data
Basic dynamic load rating C 27500 kN
Basic static load rating C0 81500 kN
Fatigue load limit Pu 4750 kN
Comparative radial load rating CF 7350kN
Comparative axial load rating CFa 1140 kN
Thrust factor K 1.83
Calculation factor e 0.31
Calculation factor Y1 2.2
Calculation factor Y2 3.3
Calculation factor Y0 2.2
Mass
Mass bearing 3390 kg
2 bearing BT4B 334031HA4C1800 code explanation
BT4B: four row tapered roller bearings
330431: special taperd roller bearings with outside diameter≥420mm
HA4: outer and inner rings and rollers of case hardened steel
C1800: internal clearance, axial internal clearance, mean value 1800µm
3 Product picture of BT4B 334031HA4C1800 bearings
4 Variants of bearings BT4B 334031HA4C1800
BT4B 334031/HA4C1800,BT4B 334031/HA4C1800 bearing, bearing BT4B 334031/HA4C1800, bearing BT4B334031HA4C1800, BT4B 334031HA4C1800 bearing, BT4B 334031 AG/HA4 bearing
5 Application of bearing BT4B 334031/HA4C1800
Low- and medium-speed rolling mills
