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

BT4B 332997 B/HA1

Design

Design variant/feature

TQINT

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 B/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：2026-04-16
Application:Power equipment,squeeze machine etc,multi-knife lathe,hydraulic cylinder buffer,gear type,car steering pin,pipe fittings Steel industry,gas turbine,Other Measurements,metallurgical mold,heating fans
Similar models:BT4B 332997/HA1 BT4B 332997 B/HA1
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Model No.	Inner Diameter	Outer Diameter	Width	Type
280x340x25 HDS1 R	280	340	25	Seals
305272 DA	220	309.5	76	Bearings, units and housings
71911 ACE/P4A	55	80	13	Bearings, units and housings
891/1120 M	1120	1320	122	Bearings, units and housings
91713	-	-	28	Seals
BT4B 332188/HA1	374.65	501.65	-	Bearings, units and housings
HA 2316	68.2625	80	78	Bearings, units and housings
IR 40x48x22	40	48	22	Bearings, units and housings
NJ 2215 ECP	75	130	31	Bearings, units and housings
SIA 45 ESX-2LS	45	-	32	Bearings, units and housings
SYR 1 15/16-3	49.2125	-	-	Bearings, units and housings
W 627/7 R-2ZS	7	11	3	Bearings, units and housings

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Hot number： 31326T164 X/DB 403353 38x52x8 CRW1 R 407403 55x70x8 CRW1 V 71911 ACE/HCP4A D/W R155 FYTJ 45 KF FYTWK 505 Y FYTWK 507 Y N 226 ECP NU 417 OH 31/630 H PFT 30 FM W 617/3