Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Double row tapered roller bearings -- Double row tapered roller bearings, TDO design SKF 331780 A

331780 A

Design

Design variant/feature

TDO/D

Dimensions

d		762	mm
D		965.2	mm
T		187.325	mm
C		133.35	mm
d₁	≈	853	mm
D₁	≈	924	mm
r_1,2	min.	6.4	mm
r_3,4	min.	1.5	mm
a		316	mm

Calculation data

Basic dynamic load rating	C	3580	kN
Basic static load rating	C₀	9800	kN
Fatigue load limit	P_u	670	kN
Calculation factor	e	0.4
Calculation factor	Y₁	1.7
Calculation factor	Y₂	2.5
Calculation factor	Y₀	1.6
Comparative radial load rating	C_F	865	kN
Comparative axial load rating	C_Fa	338	kN
Thrust factor	K	1.45

Mass

Mass bearing

290

Model Number: 331780 A
Inner Diameter：762mm Outer Diameter：965.2mm Width：-mm
Reference speed:- Limiting speed:-
Type：Bearings, units and housings Roller bearings Tapered roller bearings Double row tapered roller bearings
Details： Double row tapered roller bearings Double row tapered roller bearings, TDO design
Update date：2026-04-16
Application:Flame Cutting,meat products machine,wheel lathe,atomizer class,tray industry,universal category,Beauty and Body,Spectrum Products,Hydraulic Hose,milling head plug,Traffic Fire Protection Equipment Security equipment
Similar models:331780 A
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1150 VL V	1045	-	-	Seals
25580/25522	44.45	82.931	26.988	Bearings, units and housings
550224	32.5374	51.99	15.88	Seals
FNL 518 A	80	-	-	Bearings, units and housings
IR 50x58x22	50	58	22	Bearings, units and housings
LM 102949/910	45.242	73.431	19.558	Bearings, units and housings
NCF 3005 CV	25	47	16	Bearings, units and housings
NCF 3038 CV	190	290	75	Bearings, units and housings
RLS 9-2RS1	28.575	63.5	15.875	Bearings, units and housings
SAF 22516 x 2.3/4 TLC	69.85	-	-	Bearings, units and housings
SHR 50	50	-	-	Coupling systems
SSAFS 22538 x 7 TLC	177.8	-	-	Bearings, units and housings

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