Bearings, units and housings -- Roller bearings -- Tapered roller bearings -- Four-row tapered roller bearings -- Four-row tapered roller bearings, TQO design SKF 330870 BG

330870 BG

Design

Design variant/feature

TQON/GW

Dimensions

d		317.5	mm
D		422.275	mm
B		269.875	mm
T		269.875	mm
d₁	≈	342	mm
D₁	≈	384	mm
r_1,2	min.	1.5	mm
r_3,4	min.	3.3	mm

Calculation data

Basic dynamic load rating	C	3360	kN
Basic static load rating	C₀	8150	kN
Fatigue load limit	P_u	680	kN
Comparative radial load rating	C_F	815	kN
Comparative axial load rating	C_Fa	129	kN
Thrust factor	K	1.83
Calculation factor	e	0.31
Calculation factor	Y₁	2.2
Calculation factor	Y₂	3.3
Calculation factor	Y₀	2.2

Mass

Mass bearing

105

Model Number: 330870 BG
Inner Diameter：317.5mm Outer Diameter：422.275mm 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:Leather Products,medical equipment,horizontal processing,other lathe,ventilation fans,switch,Gripper Swing,hanging clamp,municipal machinery,Storage Tool,animal
Similar models:330870 BG
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Model No.	Inner Diameter	Outer Diameter	Width	Type
32317 B	85	180	63.5	Bearings, units and housings
7313 BEGAM	65	140	33	Bearings, units and housings
8691	22.225	36.5	6.35	Seals
978x1018x18 HS5 R	978	1018	18	Seals
FSAF 1517 x 2.7/8 TLC	73.025	-	-	Bearings, units and housings
K 22x32x24	22	32	24	Bearings, units and housings
N 052	35.9664	-	258.8768	Bearings, units and housings
SAF 22538	176.2125	-	-	Bearings, units and housings
SAW 23538	176.2125	-	-	Bearings, units and housings
SNW 122x4	101.6	110	110.1852	Bearings, units and housings
YAR 206-2RF	30	62	38.1	Bearings, units and housings
YAR 210-115-2RF/HV	49.213	90	51.6	Bearings, units and housings

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