Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQI design SKF BT4B 331809/HA1

BT4B 331809/HA1

Design

Design variant/feature

TQI

Dimensions

d		384.175	mm
D		546.1	mm
B		428.625	mm
T		384.175	mm
d₁	≈	458	mm
D₁	≈	520	mm
r_1,2	min.	6.4	mm
r_3,4	min.	1.5	mm

Calculation data

Basic dynamic load rating	C	6440	kN
Basic static load rating	C₀	16600	kN
Fatigue load limit	P_u	1290	kN
Comparative radial load rating	C_F	1730	kN
Comparative axial load rating	C_Fa	278	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

300

Model Number: BT4B 331809/HA1
Inner Diameter：384.175mm Outer Diameter：546.1mm 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, TQI design
Update date：2026-04-16
Application:ECG,diving equipment,forklift industry,SPA equipment,defogging and degreasing,EEG,small appliances,X-ray Equipment,large agricultural machinery,textile machinery,Automobile
Similar models:BT4B 331809/HA1
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