Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 331372/HA4

BT4B 331372/HA4

Design

Design variant/feature

TQO.1/GWI

Dimensions

d		1003.3	mm
D		1358.9	mm
B		800.1	mm
T		800.1	mm
d₁	≈	1080	mm
D₁	≈	1240	mm
r_1,2	min.	4.8	mm
r_3,4	min.	12.7	mm

Calculation data

Basic dynamic load rating	C	27500	kN
Basic static load rating	C₀	81500	kN
Fatigue load limit	P_u	4750	kN
Comparative radial load rating	C_F	7350	kN
Comparative axial load rating	C_Fa	1140	kN
Thrust factor	K	1.83
Calculation factor	e	0.31
Calculation factor	Y₁	2.2
Calculation factor	Y₂	3.3
Calculation factor	Y₀	2.2

Mass

Mass bearing

3450

Model Number: BT4B 331372/HA4
Inner Diameter：1003.3mm Outer Diameter：1358.9mm 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：2026-08-17
Application:product accessories,Reflective Materials Industrial fabrics,DC generators,Laser Measurements,food add,Body shaping,Traffic Fire Protection Equipment Security equipment,paper processing machine,roller lathe,Plastic molding,Industrial
Similar models:BT4B 331372/HA4
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Model No. Inner Diameter Outer Diameter Width Type

22322 EKJA/VA405
7824
NUTR 3580 X
OKC 860
T2ED 055

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Hot number： 30244 305283 D 320x355x16 HDS1 R TQO design 445 VRME R 61930 MA 7313 BEGAM BT2B 334087/HA3 FYE 1 1/2 BT4B 331089 CG/HA1 OKBS 136 PRMF 556050 SAFS 22240 SI 30 C SYJ 509

Model No.	Inner Diameter	Outer Diameter	Width	Type
22322 EKJA/VA405
7824
NUTR 3580 X
OKC 860
T2ED 055