Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 331487 G/HA1

BT4B 331487 G/HA1

Design

Design variant/feature

TQO/GWI

Dimensions

d		260.35	mm
D		422.275	mm
B		314.325	mm
T		317.5	mm
d₁	≈	298	mm
D₁	≈	370	mm
r_1,2	min.	6.4	mm
r_3,4	min.	3.3	mm

Calculation data

Basic dynamic load rating	C	4130	kN
Basic static load rating	C₀	8000	kN
Fatigue load limit	P_u	710	kN
Comparative radial load rating	C_F	1100	kN
Comparative axial load rating	C_Fa	179	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

180

Model Number: BT4B 331487 G/HA1
Inner Diameter：260.35mm Outer Diameter：422.275mm 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：2026-08-19
Application:squeeze machine etc,Roller mill,relay,medical equipment,Automation,special broaching machine,comprehensive experiment,diagnostic test paper,Forming mold,milling head plug,car steering pin
Similar models:BT4B 331487 G/HA1
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Model No. Inner Diameter Outer Diameter Width Type

529452
529490
FSYE 3-18
MS 30/800-750
N 670

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Hot number： 13878 309 NR 32248 39581/39520 48290/48220 51192 F 51202 V/HR22T2 596110 7018 ACE/P4AL1 71915 ACE/HCP4A 80x105x10 HMS5 RG FSYE 3 1/2-18 NJ 324 ECJ SNW 3128x5 YAR 209-112-2F

Model No.	Inner Diameter	Outer Diameter	Width	Type
529452
529490
FSYE 3-18
MS 30/800-750
N 670