Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 328912 E3/C675

BT4B 328912 E3/C675

Design

Design variant/feature

TQOSN/GW

Dimensions

d		355.6	mm
D		488.95	mm
B		317.5	mm
T		317.5	mm
d₁	≈	382	mm
D₁	≈	446	mm
r_1,2	min.	1	mm
r_3,4	min.	3.3	mm

Calculation data

Basic dynamic load rating	C	5100	kN
Basic static load rating	C₀	10000	kN
Fatigue load limit	P_u	830	kN
Comparative radial load rating	C_F	1080	kN
Comparative axial load rating	C_Fa	177	kN
Thrust factor	K	1.75
Calculation factor	e	0.33
Calculation factor	Y₁	2
Calculation factor	Y₂	3
Calculation factor	Y₀	2

Mass

Mass bearing

170

Model Number: BT4B 328912 E3/C675
Inner Diameter：355.6mm Outer Diameter：488.95mm 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：2026-04-16
Application:ventilator anesthesia machine etc,relay,ventilation fans,Leather Products,static control,Industrial,packaging machinery,Workpiece,instrument,centrifugal pump,food safety
Similar models:BT4B 328912 E3/C675 BT4B 328912 G/HA1VA901 BT4B 328912 E1/C300
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SAF 22311	55	-	-	Bearings, units and housings
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