Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF 331978 BG

331978 BG

Design

Design variant/feature

TQON/GW

Dimensions

d		540	mm
D		690	mm
B		400	mm
T		400	mm
d₁	≈	566	mm
D₁	≈	643	mm
r_1,2	min.	2	mm
r_3,4	min.	5	mm

Calculation data

Basic dynamic load rating	C	7480	kN
Basic static load rating	C₀	21200	kN
Fatigue load limit	P_u	1500	kN
Comparative radial load rating	C_F	1860	kN
Comparative axial load rating	C_Fa	301	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

372

Model Number: 331978 BG
Inner Diameter：540mm Outer Diameter：690mm 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:motorcycle,noise inspection,sleep monitoring,air conditioning tools,Gear grinding machine,Embroidery,Industrial,chemical instruments,Pest Monitoring,tray industry,Chromatography Products
Similar models:331978 BG
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