Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 331089 A/HA4

BT4B 331089 A/HA4

Design

Design variant/feature

TQO.1/GWI

Dimensions

d		685.8	mm
D		876.3	mm
B		352.425	mm
T		355.6	mm
d₁	≈	733	mm
D₁	≈	803	mm
r_1,2	min.	3.3	mm
r_3,4	min.	1.5	mm

Calculation data

Basic dynamic load rating	C	6930	kN
Basic static load rating	C₀	20800	kN
Fatigue load limit	P_u	1430	kN
Comparative radial load rating	C_F	1630	kN
Comparative axial load rating	C_Fa	379	kN
Thrust factor	K	1.4
Calculation factor	e	0.43
Calculation factor	Y₁	1.6
Calculation factor	Y₂	2.3
Calculation factor	Y₀	1.6

Mass

Mass bearing

530

Model Number: BT4B 331089 A/HA4
Inner Diameter：685.8mm Outer Diameter：876.3mm 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：2026-04-18
Application:paper processing machine,DC generators,noise reduction equipment,static control,universal category,thin metal materials,roller lathe,Hydraulic Equipment,Hydraulic Rama,glass,granulator
Similar models:BT4B 331089 A/HA4 BT4B 331089 CG/HA1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
260x290x16 HS8 R	260	290	16	Seals
20643	52.4002	77.75	7.95	Seals
316977 C	140	250	114	Bearings, units and housings
32316/DF	80	170	-	Bearings, units and housings
471551	1467	-	-	Seals
75x110x12 HMS5 RG	75	110	12	Seals
TQO design	510	655	-	Bearings, units and housings
FSAF 23024 KAT x 4.1/4	103.1875	-	-	Bearings, units and housings
NKX 15 Z	15	24	23	Bearings, units and housings
PSMF 152115 A51	15	21	15	Bearings, units and housings
S7005 ACD/HCP4A	25	47	12	Bearings, units and housings
YAR 206-2FW/VA201	30	62	38.1	Bearings, units and housings

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