Bearings, units and housings -- Ball bearings -- Angular contact ball bearings -- Double row angular contact ball bearings -- Angular contact ball bearings, double row SKF 3308 ATN9

3308 ATN9

SKF Explorer

Dimensions

d		40	mm
D		90	mm
B		36.5	mm
d₂	≈	50.8	mm
D₂	≈	80.5	mm
r_1,2	min.	1.5	mm
a		53	mm

Abutment dimensions

d_a	min.	49	mm
D_a	max.	81	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	64	kN
Basic static load rating	C₀	44	kN
Fatigue load limit	P_u	1.86	kN
Reference speed		7500	r/min
Limiting speed		7500	r/min
Calculation factor	k_r	0.07
Calculation factor	e	0.8
Calculation factor	X	0.63
Calculation factor	Y₀	0.66
Calculation factor	Y₁	0.78
Calculation factor	Y₂	1.24

Mass

Mass bearing

0.93

Model Number: 3308 ATN9
Inner Diameter：40mm Outer Diameter：90mm Width：36.5mm
Reference speed:7500 r/min Limiting speed:7500 r/min
Type：Bearings, units and housings Ball bearings Angular contact ball bearings Double row angular contact ball bearings
Details： Double row angular contact ball bearings Angular contact ball bearings, double row
Update date：2026-04-16
Application:Internal thread type,sawing machine,laser devices,thin metal materials,root canal filling,fruit and vegetable processing,Hydraulic Couplings,security equipment,other lathe,miscellaneous instruments,Reflective Materials Industrial fabrics
Similar models:330862 B 3308 ATN9 3308 A 330824 A 330870 BG 3308 A-2ZTN9/MT33 3308 A-2RS1TN9/MT33 3308 DTN9 53308 + U 308 3308 A-2Z
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Model No.	Inner Diameter	Outer Diameter	Width	Type
15818	40.005	54.991	5.9944	Seals
16657	42.8752	59.13	7.95	Seals
30316	80	170	42.5	Bearings, units and housings
3306 A	30	72	30.2	Bearings, units and housings
71916 CB/HCP4A	80	110	16	Bearings, units and housings
99144	36.5252	45.2374	12.7	Seals
C 39/1060 KMB	1060	1400	250	Bearings, units and housings
KD21-705	115	521	-	Coupling systems
OH 2348 H	220	240	199	Bearings, units and housings
PSM 405060 A51	40	50	60	Bearings, units and housings
SAFS 22518-11 x 3.1/8 T	79.375	-	-	Bearings, units and housings
W 605 R-2RS1	5	14	5	Bearings, units and housings

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Hot number： 108710 1726203-2RS1 23028 CCK/W33 71821 CD/HCP4 71907 ACE/P4AL 90x120x12 CRW1 V G 18x24x3 NK 26/16 NRT 325 B NU 31/500 ECMA/HB1 PWKR 80.2RS SAF 1617 x 3 TLC SAFS 22222 SI 25 C SY 511 M