BT4B 331334/HA4 Bearing

rolling mill bearings BT4B 331334/HA4 1139.825mm*1509.712mm*923.925mm bearings BT4B 331334/HA4 four row tapered roller bearings bearings BT4B331334HA4


Bearings BT4B331334/HA4 is made of extremely clean and homogenous steel and undergo a unique heat treatment, which improve the resistance to wear.Hence that, BT4B 331334/HA4 rolling mill bearings is always been considered as first choice whether in hot or cold rolling mills.  

1 Specifications of rolling mill bearings BT4B 331334/HA4

Technical drawings of BT4B 331334HA4

d 1139.825 mm

D 1509.712 mm

B 923.925 mm

T 923.925 mm

d1 ≈ 1220 mm

D1 ≈ 1375 mm

r1,2 min. 4.8 mm

r3,4 min. 12.7 mm

Calculation data

Basic dynamic load rating C 33600 kN

Basic static load rating C0 108000 kN

Fatigue load limit Pu 5850 kN

Comparative radial load rating CF 9000 kN

Comparative axial load rating CFa 1480 kN

Thrust factor K 1.76

Calculation factor e 0.31

Calculation factor Y1 2.2

Calculation factor Y2 3.3

Calculation factor Y0 2.2


Mass bearing 4840 kg

2 Product pictures of bearings BT4B 331334HA4(TQO  design)

four row tapered roller bearings BT4B331334HA4

3 What is TQO design?

Four row tapered roller bearings are primarily produced with the TQO configuration. In the TQO configuration, there are two rollers and cage assemblies arranged face to face. 

TQO design of bearings BT4B 331334HA4

4 How to store bearings BT4B 331334/HA4?

The bearings BT4B 331334/HA4 can be stored in their original unopened packaging for several years, provided the relative humidity in the storage room does not exceed 60%. The bearings must be stored lying down and should only be removed from the packaging just before mounting in order to prevent BT4B 331334/HA4 from becoming dirty.

For more rolling mill bearings, keep us posted the bearings part number OR Sizes information that at least include inner diameter, outer diameter, thickness, you will always get the right premium quality bearings at the soonest time from Sun Rises Group Limited.(

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