Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF BT4B 331649/HA4

BT4B 331649/HA4

Design

Design variant/feature

TQO.1/GWI

Dimensions

d		863.6	mm
D		1181.1	mm
B		666.75	mm
T		666.75	mm
d₁	≈	929	mm
D₁	≈	1972	mm
r_1,2	min.	4.8	mm
r_3,4	min.	3.3	mm

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

2150

Model Number: BT4B 331649/HA4
Inner Diameter：863.6mm 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, TQO design
Update date：2026-04-16
Application:Industrial,rolling mill roll neck and slowdown device,electrocardiograph,bio-chemical,Textile Industry Accessories and Accessories,security,Dental Equipment,horizontal processing,vertical sawing machine,tire industry,ship special
Similar models:BT4B 331649/HA4
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Model No.	Inner Diameter	Outer Diameter	Width	Type
10152	25.4	50.8	6.35	Seals
2304 M	20	52	21	Bearings, units and housings
61818-2RZ	90	115	13	Bearings, units and housings
6226 M	130	230	40	Bearings, units and housings
67388/67322	127	196.85	46.038	Bearings, units and housings
6x12x2 HM3 R	6	12	2	Seals
7008 ACE/HCP4A	40	68	15	Bearings, units and housings
BEAM 060145-2RS	60	145	45	Bearings, units and housings
GRA 3019	95	128	37	Bearings, units and housings
K 58x65x18	58	65	18	Bearings, units and housings
L 68149/110	34.987	59.131	15.875	Bearings, units and housings
NA 2210.2RSX	50	90	22.7	Bearings, units and housings

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