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BT4B 332078/HA4 Bearing

rolling mill bearings BT4B 332078/HA4 1500*1900*1080mm bearings four row tapered roller bearings BT4B 332078/HA4 bearing 1500x1900x1080mm

Description

rolling mill bearings BT4B 332078/HA4 is with favourable stress distribution because of its unique design. The contact geometry between the rollers and raceways has been much improved by the use of logarithmic contact profile geometry. Such design results in optimized stress distribution in the bearing BT4B332078HA4 under all conditions of load and misalignment.


1 Technical details of rolling mill bearings BT4B 332078/HA4

drawing of rolling mill bearings BT4B 332078HA4

d 1500 mm

D 1900 mm

B 1080 mm

T 1080 mm

d1 ≈ 1575 mm

D1 ≈ 1750 mm

r1,2 min. 4 mm

r3,4 min. 12 mm

Calculation data

Basic dynamic load rating C 46800 kN

Basic static load rating C0 170000 kN

Fatigue load limit Pu 8300 kN

Comparative radial load rating CF 12500 kN

Comparative axial load rating CFa 2140 kN

Thrust factor K 1.68

Calculation factor e 0.35

Calculation factor Y1 1.9

Calculation factor Y2 2.9

Calculation factor Y0 1.8

Mass

Mass bearing 7700 kg


2 Bearings picture of BT4B 332078HA4

four row tapered roller bearing BT4B 332078HA4 rolling mill bearing BT4B 332078HA4-TQO design 

3 Features of bearings BT4B 332078/HA4

Higher load carrying capacity

Longer usage life

unique inspection/maintenance capabilities

application of rolling mill bearings BT4B 332078HA4 bearing-four row tapered roller bearing BT4B 332078HA4  

4 Installation Notice of mill rolling bearing BT4B 332078 HA4

In most rolling mill applications four-row taper roller bearings are mounted with a loose fit on the roll neck. The roll neck journal and the axial abutment for the inner rings must have a certain minimum hardness. The rec-ommended hardness is 45 Shore (≈ 34 HRC) for the roll neck surface and 60 Shore (≈ 45 HRC) for the axial abutments for the inner rings.

The inner rings must not be axially clamped. There must remain a total clearance between the bearing rings and their abutments of 0.2 to 1.3 mm.


For more rolling mill bearings requirement, freely send mail to Mr Gavin Chu for more details(gavinchu@sunrises-group.com)

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