Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQI design SKF BT4B 328956/HA4

BT4B 328956/HA4

Design

Design variant/feature

TQIT.1

Dimensions

d		872.847	mm
D		1181.1	mm
B		714.375	mm
T		628.65	mm
d₁	≈	998	mm
D₁	≈	1131	mm
r_1,2	min.	9.7	mm
r_3,4	min.	1.5	mm

Tapered bore, taper 1:12

Calculation data

Basic dynamic load rating	C	20900	kN
Basic static load rating	C₀	57000	kN
Fatigue load limit	P_u	3550	kN
Comparative radial load rating	C_F	5600	kN
Comparative axial load rating	C_Fa	909	kN
Thrust factor	K	1.76
Calculation factor	e	0.33
Calculation factor	Y₁	2
Calculation factor	Y₂	3
Calculation factor	Y₀	2

Mass

Mass bearing

2450

Model Number: BT4B 328956/HA4
Inner Diameter：872.847mm Outer Diameter：1181.1mm 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:agricultural testing and analysis equipment and related,Handling machinery and various industrial machinery,electric hydraulic lifting platform,metering pump,ultra-quiet generators,medical treatment,vertical pull,Internal thread type,rolling machine,linear drive,outdoor equipment
Similar models:BT4B 328956/HA4
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