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

BT4B 331977 E/C725

SKF Explorer

Design

Design variant/feature

TQO/GWI

Dimensions

d		460	mm
D		610	mm
B		360	mm
T		360	mm
d₁	≈	479	mm
D₁	≈	565	mm
r_1,2	min.	3	mm
r_3,4	min.	6	mm

Calculation data

Basic dynamic load rating	C	7500	kN
Basic static load rating	C₀	16300	kN
Fatigue load limit	P_u	1250	kN
Comparative radial load rating	C_F	1600	kN
Comparative axial load rating	C_Fa	259	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

291

Model Number: TQO design
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：2026-07-30
Application:engine,water protection,lathe,embroidery cloth,Spectrum Products,shoe-making machinery,mobile toilet,industrial fans,screen filter,large agricultural machinery,electrocardiograph
Similar models:6019-2RS1 MS 31/710 22324-2CS5/VT143 7205 ACD/HCP4A C 2222 S71921 CD/P4A NUP 207 ECP 332297 3310 A NUP 213 ECJ
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Model No. Inner Diameter Outer Diameter Width Type

3150210
56x72x8 HMS5 V
FSAF 22615 x 2.3/8 TLC
NU 1006
PRM 808540

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Model No.	Inner Diameter	Outer Diameter	Width	Type
3150210
56x72x8 HMS5 V
FSAF 22615 x 2.3/8 TLC
NU 1006
PRM 808540