Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 328374/HA1

BT4B 328374/HA1

Design

Design variant/feature

TQO/GWI

Dimensions

d		420	mm
D		620	mm
B		355	mm
T		355	mm
d₁	≈	469	mm
D₁	≈	553	mm
r_1,2	min.	2	mm
r_3,4	min.	5	mm

Calculation data

Basic dynamic load rating	C	6440	kN
Basic static load rating	C₀	14600	kN
Fatigue load limit	P_u	1120	kN
Comparative radial load rating	C_F	1700	kN
Comparative axial load rating	C_Fa	262	kN
Thrust factor	K	1.87
Calculation factor	e	0.31
Calculation factor	Y₁	2.2
Calculation factor	Y₂	3.3
Calculation factor	Y₀	2.2

Mass

Mass bearing

375

Model Number: BT4B 328374/HA1
Inner Diameter：420mm Outer Diameter：620mm 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：2026-04-19
Application:electronic components,lifting upgrade,Material handling equipment,Storage Device,stamping die,switch,squeeze machine etc,forming machine,respirator,metal mold,injection molding machine
Similar models:BT4B 328374/HA1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
3202 A-2Z	15	35	15.9	Bearings, units and housings
500 VE R	488	-	-	Seals
55x75x8 HMSA10 V	55	75	8	Seals
6004-2Z	20	42	12	Bearings, units and housings
6024 N	120	180	28	Bearings, units and housings
91350	-	-	44	Seals
NKI 55/35	55	72	35	Bearings, units and housings
NNU 4924 BK/SPW33	120	165	45	Bearings, units and housings
OKBS 128	128	-	-
S71904 CE/HCP4A	20	37	9	Bearings, units and housings
W 625 R-2RS1	5	16	5	Bearings, units and housings
YET 209-110		85		Bearings, units and housings

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