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

BT4-8031 E/C800

SKF Explorer

Design

Design variant/feature

TQON/W

Dimensions

d		625	mm
D		815	mm
B		480	mm
T		480	mm
d₁	≈	656	mm
D₁	≈	746	mm
r_1,2	min.	3.2	mm
r_3,4	min.	6.5	mm

Calculation data

Basic dynamic load rating	C	13200	kN
Basic static load rating	C₀	31000	kN
Fatigue load limit	P_u	2120	kN
Comparative radial load rating	C_F	2850	kN
Comparative axial load rating	C_Fa	468	kN
Thrust factor	K	1.74
Calculation factor	e	0.33
Calculation factor	Y₁	2
Calculation factor	Y₂	3
Calculation factor	Y₀	2

Mass

Mass bearing

660

Model Number: TQO design
Inner Diameter：625mm Outer Diameter：815mm 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：2026-08-20
Application:Spectrum Products,Machine Tool Accessories,electronic components,office equipment,plastic molding,electronic materials,flexible processing,crimping tools,economic mold,gas turbine,chamfering machine etc
Similar models:SILR 120 ES S71909 ACB/HCP4A FY 3/4 TF/VA201 61868 LM 503349 A/310 62211-2RS1 HN 1612 BEAS 008032-2RZ 7201 CD/P4A NCF 2922 CV
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Model No. Inner Diameter Outer Diameter Width Type

20002
37403
HCRE 015 R
RN-2x13.8 BF/G2
W 6305-2RZ

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Model No.	Inner Diameter	Outer Diameter	Width	Type
20002
37403
HCRE 015 R
RN-2x13.8 BF/G2
W 6305-2RZ