Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQI design SKF BT4B 332997/HA1

BT4B 332997/HA1

Design

Design variant/feature

TQIT

Dimensions

d		287.5	mm
D		440	mm
B		330.3	mm
T		284	mm
d₁	≈	349	mm
D₁	≈	416	mm
r_1,2	min.	4	mm
r_3,4	min.	1	mm

Tapered bore, taper 1:12

Calculation data

Basic dynamic load rating	C	4180	kN
Basic static load rating	C₀	8500	kN
Fatigue load limit	P_u	735	kN
Comparative radial load rating	C_F	1120	kN
Comparative axial load rating	C_Fa	193	kN
Thrust factor	K	1.68
Calculation factor	e	0.35
Calculation factor	Y₁	1.9
Calculation factor	Y₂	2.9
Calculation factor	Y₀	1.8

Mass

Mass bearing

180

Model Number: BT4B 332997/HA1
Inner Diameter：287.5mm Outer Diameter：440mm 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, TQI design
Update date：2025-12-09
Application:Safety protection,Tool,key lock,sewage pump,instrumentation instrument,tray industry,surgical instruments,mobile toilet,small appliances,quality inspection equipment,machine lathe
Similar models:BT4B 332997/HA1 BT4B 332997 B/HA1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
30x42x7 CRW1 R	30	42	7	Seals
4982	12.7	25.37	6.35	Seals
51172 F	360	440	65	Bearings, units and housings
634-RZ	4	16	5	Bearings, units and housings
71819 CD/HCP4	95	120	13	Bearings, units and housings
D/W RW3 R	4.762	12.7	5.77	Bearings, units and housings
FYTWR 1.7/16 YTHR	36.512	-	-	Bearings, units and housings
K 81248 M	240	340		Bearings, units and housings
HK 0808	8	12	8	Bearings, units and housings
K 70x76x30	70	76	30	Bearings, units and housings
NU 309 ECJ	45	100	25	Bearings, units and housings
SSAFS 22340 T	200	-	-	Bearings, units and housings

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