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：2026-04-16
Application:tapping machine,disposable,ventilation heating equipment,Hydraulic Rama,nail products,electromagnet,medical equipment,water protection,Generator,Logistics Equipment,plastic rolling
Similar models:81111 TN 81116 TN GS 81116 K 81111 TN K 81110 TN BT4-8111 E2/C725 WS 81111 K 81116 TN GS 81114 K 81112 TN
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1303 EM	17	47	14	Bearings, units and housings
470461	448	-	-	Seals
6201-ZNR	12	32	10	Bearings, units and housings
6210/HR22Q2	50	90	20	Bearings, units and housings
65 VS R	58	-	-	Seals
AS 75100	75	100	1	Bearings, units and housings
PSM 305060 A51	30	50	60	Bearings, units and housings
RNAO 40x50x34	40	50	34	Bearings, units and housings
SAF 1622 x 3.13/16 TLC	96.8375	-	-	Bearings, units and housings
SSAFS 22244 TLC	220	-	-	Bearings, units and housings
SYR 2 15/16 N-118	74.6125	-	-	Bearings, units and housings
ZW 85x100	85	100	2	Seals

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