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

BT4-8169 E81/C450

SKF Explorer

Design

Design variant/feature

TQOSN/GWSI

Dimensions

d		431.8	mm
D		571.5	mm
B		279.4	mm
T		279.4	mm
d₁	≈	460	mm
D₁	≈	517	mm
r_1,2	min.	1.5	mm
r_3,4	min.	3.3	mm

Calculation data

Basic dynamic load rating	C	4650	kN
Basic static load rating	C₀	10000	kN
Fatigue load limit	P_u	800	kN
Comparative radial load rating	C_F	980	kN
Comparative axial load rating	C_Fa	266	kN
Thrust factor	K	1.07
Calculation factor	e	0.54
Calculation factor	Y₁	1.25
Calculation factor	Y₂	1.8
Calculation factor	Y₀	1.3

Mass

Mass bearing

191

Model Number: TQO design
Inner Diameter：431.8mm Outer Diameter：571.5mm 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:pressure control valve,Performance test,agricultural testing and analysis equipment and related,test strip,food add,floor industry,Handling machinery and various industrial machinery,plastic blow molding,expectoration machine,Individual Wire,engineering machinery
Similar models:P 47 H 318 BT4B 332833 G/HA4 PCZ 0712 E NNU 4884 K/W33 FSAF 1616 708 CD/P4AH S7215 CD/HCP4A YAT 211-200 LL 584449/410
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Model No. Inner Diameter Outer Diameter Width Type

BS2-2218-2RSK/VT143
NJ 309 ECM
RNA 4922
SAF 23044 KA x 7.13/16
W 618/6 R

Purchase the SKF TQO design Four-row tapered roller bearings, TQO design Please fill in the following

Hot number： 10075 21319 E 292/630 EM 592627 891/710 M BC4-8054/HA4 BD-C 3060 KM-AOH 3060 K 22x26x10 K 90x97x20 KM 6 NCF 18/800 V SY 511 M WS 81134 YAR 212-2RF YAR 215-2F

Model No.	Inner Diameter	Outer Diameter	Width	Type
BS2-2218-2RSK/VT143
NJ 309 ECM
RNA 4922
SAF 23044 KA x 7.13/16
W 618/6 R