Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 330742 A/HA4

BT4B 330742 A/HA4

Design

Design variant/feature

TQO.1/GWI

Dimensions

d		863.6	mm
D		1219.1	mm
B		876.3	mm
T		889	mm
d₁	≈	935	mm
D₁	≈	1080	mm
r_1,2	min.	4.8	mm
r_3,4	min.	12.7	mm

Calculation data

Basic dynamic load rating	C	28100	kN
Basic static load rating	C₀	81500	kN
Fatigue load limit	P_u	4750	kN
Comparative radial load rating	C_F	7500	kN
Comparative axial load rating	C_Fa	1230	kN
Thrust factor	K	1.76
Calculation factor	e	0.33
Calculation factor	Y₁	2
Calculation factor	Y₂	3
Calculation factor	Y₀	2

Mass

Mass bearing

3470

Model Number: BT4B 330742 A/HA4
Inner Diameter：863.6mm Outer Diameter：1219.1mm Width：-mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Roller bearings Tapered roller bearings Four-row tapered roller bearings
Details： Four-row tapered roller bearings Four-row tapered roller bearings, TQO design
Update date：2025-12-09
Application:generator,security equipment,Vertical pull,Infrared Technology,glass,plastic rolling,Processing machinery,Display Devices,Other machinery,hydraulic connector,orthodontic material
Similar models:BT4B 330742 A/HA4
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