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

BT4-8160 E81/C400

SKF Explorer

Design

Design variant/feature

TQOSN/GWSI

Dimensions

d		343.052	mm
D		457.098	mm
B		254	mm
T		254	mm
d₁	≈	365	mm
D₁	≈	417	mm
r_1,2	min.	1	mm
r_3,4	min.	3.3	mm

Calculation data

Basic dynamic load rating	C	3600	kN
Basic static load rating	C₀	7100	kN
Fatigue load limit	P_u	600	kN
Comparative radial load rating	C_F	765	kN
Comparative axial load rating	C_Fa	179	kN
Thrust factor	K	1.23
Calculation factor	e	0.48
Calculation factor	Y₁	1.4
Calculation factor	Y₂	2.1
Calculation factor	Y₀	1.4

Mass

Mass bearing

111

Model Number: TQO design
Inner Diameter：343.052mm Outer Diameter：457.098mm 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：2026-07-30
Application:atomizer class,heating fans,Industrial,Individual Wire,small appliances,gear grinding machine,key lock,Laser Devices,Antenna Potentials,machine tool spindle,chemical raw materials and reagents
Similar models:PWM 708090 SNW 44x7.7/8 W 61916-2Z FBSA 210 A/QFC PF 50 TF 811/530 M PRMF 909550 NUP 2310 ECML GB 3007 HM 804846/810
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Model No. Inner Diameter Outer Diameter Width Type

7009 ACB/P4AL
71900 CE/P4AH
AH 3034
HK 3016
NJ 2234 ECML

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Model No.	Inner Diameter	Outer Diameter	Width	Type
7009 ACB/P4AL
71900 CE/P4AH
AH 3034
HK 3016
NJ 2234 ECML