Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 331346 A/HA1

BT4B 331346 A/HA1

Design

Design variant/feature

TQO/WIY

Dimensions

d		558.8	mm
D		736.6	mm
B		455.612	mm
T		457.2	mm
d₁	≈	604	mm
D₁	≈	669	mm
r_1,2	min.	3.3	mm
r_3,4	min.	6.4	mm

Calculation data

Basic dynamic load rating	C	8420	kN
Basic static load rating	C₀	26000	kN
Fatigue load limit	P_u	1800	kN
Comparative radial load rating	C_F	2240	kN
Comparative axial load rating	C_Fa	364	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

545

Model Number: BT4B 331346 A/HA1
Inner Diameter：558.8mm Outer Diameter：736.6mm 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：2026-04-16
Application:powder metallurgy,journal lathe,Gripper Swing,packing equipment,spectrometer,mathematical instruments,wheel lathe,chemical raw materials and reagents,heating fans,gas turbine,chromatography
Similar models:BT4B 331346 A/HA1
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