Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 328509/HA4

BT4B 328509/HA4

Design

Design variant/feature

TQO.1/WI

Dimensions

d		560	mm
D		920	mm
B		618	mm
T		618	mm
d₁	≈	632	mm
D₁	≈	800	mm
r_1,2	min.	7.5	mm
r_3,4	min.	7.5	mm

Calculation data

Basic dynamic load rating	C	16500	kN
Basic static load rating	C₀	34000	kN
Fatigue load limit	P_u	2320	kN
Comparative radial load rating	C_F	4400	kN
Comparative axial load rating	C_Fa	858	kN
Thrust factor	K	1.49
Calculation factor	e	0.4
Calculation factor	Y₁	1.7
Calculation factor	Y₂	2.5
Calculation factor	Y₀	1.6

Mass

Mass bearing

1700

Model Number: BT4B 328509/HA4
Inner Diameter：560mm Outer Diameter：920mm 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：2026-04-20
Application:Medium and large motor,Warehouse Shelf Equipment,die casting mold,rolling mill roll neck and slowdown device,altimeter etc,Insect Count,Special Equipment,ventilation heating equipment,Dental Equipment,hot and cold box,plant determination
Similar models:BT4B 328509/HA4
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Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-22211 EK-H 311	50	100	25	Bearings, units and housings
408703	833	-	-	Seals
409002	825	-	-	Seals
609-2RSH	9	24	7	Bearings, units and housings
6335	15.875	31.98	6.35	Seals
7310 BECBP	50	110	27	Bearings, units and housings
C 3084 M	420	620	150	Bearings, units and housings
FYTB 1.1/4 TF	31.75	-	-	Bearings, units and housings
G 14x20x3	14	20	3	Seals
H 2330	135	150	139	Bearings, units and housings
SAF 1517 x 2.13/16	71.4375	-	-	Bearings, units and housings
SIQG 12 ESA	12	-	12	Bearings, units and housings

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