Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 328952 A/HA1

BT4B 328952 A/HA1

Design

Design variant/feature

TQOT

Dimensions

d		317.5	mm
D		438.15	mm
B		276.225	mm
T		276.225	mm
d₁	≈	342	mm
D₁	≈	392	mm
r_1,2	min.	1.5	mm
r_3,4	min.	3.3	mm

Tapered bore, taper 1:12

Calculation data

Basic dynamic load rating	C	3520	kN
Basic static load rating	C₀	8300	kN
Fatigue load limit	P_u	695	kN
Comparative radial load rating	C_F	930	kN
Comparative axial load rating	C_Fa	198	kN
Thrust factor	K	1.34
Calculation factor	e	0.43
Calculation factor	Y₁	1.6
Calculation factor	Y₂	2.3
Calculation factor	Y₀	1.6

Mass

Mass bearing

135

Model Number: BT4B 328952 A/HA1
Inner Diameter：317.5mm Outer Diameter：438.15mm 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:EEG,Antenna Potentials,food safety,Broadcasting System,hanging clamp,welding equipment,cooling system,chamfer,extruder,organic raw materials,tray industry
Similar models:BT4B 328952 A/HA1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
13909	34.925	73.03	7.95	Seals
19210	49.2252	61.9	6.35	Seals
3207 ATN9	35	72	27	Bearings, units and housings
275x310x16 HDS1 R	275	310	16	Seals
32226T142/DB	130	230	-	Bearings, units and housings
51205 V/HR11Q1	25	47	15	Bearings, units and housings
GEZ 112 ESX-2LS	44.45	71.438	33.325	Bearings, units and housings
N 11	12.954	-	54.7878	Bearings, units and housings
PBMF 160180100 M1G1	160	180	100	Bearings, units and housings
S7004 ACE/P4A	20	42	12	Bearings, units and housings
S7024 ACD/P4A	120	180	28	Bearings, units and housings
SSAFS 22240 T	200	-	-	Bearings, units and housings

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