Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4-8111 E2/C725

BT4-8111 E2/C725

Design

Design variant/feature

TQOSN/GWISI

Dimensions

d		460	mm
D		610	mm
B		360	mm
T		360	mm
d₁	≈	488	mm
D₁	≈	562	mm
r_1,2	min.	1.5	mm
r_3,4	min.	6	mm

Calculation data

Basic dynamic load rating	C	6800	kN
Basic static load rating	C₀	14300	kN
Fatigue load limit	P_u	1100	kN
Comparative radial load rating	C_F	1430	kN
Comparative axial load rating	C_Fa	236	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

279

Model Number: BT4-8111 E2/C725
Inner Diameter：460mm Outer Diameter：610mm 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：2026-06-25
Application:blood cell reagent,storage shelves,Energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving energy saving,tobacco machinery,internal combustion engine,mobile toilet,baler,Broadcasting System,aerial work equipment,switch,Oral Equipment
Similar models:WS 81114 WS 81116 WS 81117 WS 81111 K 81112 TN K 81118 TN 81117 TN 81118 TN GS 81114 K 81116 TN
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Model No. Inner Diameter Outer Diameter Width Type

30220/DF
70892 AM
NU 2324 ECM
PBMF 121810 M1
SNL 522 TURU

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Hot number： 20109 23032 CCK/W33 332297 6020-Z 6318-Z 7015 CD/P4A 71913 ACD/P4A D/W R6 R-2RZ FNL 511 B FYTB 1.3/4 TF PCM 202330 E PL 52 SAF 22528 T SNW 3134x5.15/16 YAR 206-104-2RFGR/HV

Model No.	Inner Diameter	Outer Diameter	Width	Type
30220/DF
70892 AM
NU 2324 ECM
PBMF 121810 M1
SNL 522 TURU