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BT4B 334031/HA4C1800 Bearing

rolling mill bearings BT4B 334031/HA4C1800 BT4B 334031/HA4C1800 four row tapered roller bearings

Description

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

drawing of BT4B 334031HA4C1800

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

four row taperd roller bearings-rolling mill bearings-BT4B 334031HA4C1800

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


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