Bearings, units and housings -- Ball bearings -- Angular contact ball bearings -- Four-point contact ball bearings -- Angular contact ball bearings, four-point contact ball bearings SKF QJ 303 N2MA

QJ 303 N2MA

Dimensions

d		17	mm
D		47	mm
B		14	mm
d₁	≈	27.7	mm
D₁	≈	36.3	mm
a		22	mm
h		3.5	mm
b		4.5	mm
r₀		0.5	mm
r_1,2	min.	1	mm

Abutment dimensions

d_a	min.	22.6	mm
D_a	max.	41.4	mm
r_a	max.	1	mm

Calculation data

Basic dynamic load rating	C	23.4	kN
Basic static load rating	C₀	15	kN
Fatigue load limit	P_u	0.64	kN
Limiting speed		28000	r/min
Calculation factor	A	0.87
Calculation factor	e	0.95
Calculation factor	X	0.6
Calculation factor	Y₀	0.58
Calculation factor	Y₁	0.66
Calculation factor	Y₂	1.07

Mass

Mass bearing

0.14

Model Number: QJ 303 N2MA
Inner Diameter：17mm Outer Diameter：47mm Width：14mm
Reference speed:28000 r/min Limiting speed:-
Type：Bearings, units and housings Ball bearings Angular contact ball bearings Four-point contact ball bearings
Details： Four-point contact ball bearings Angular contact ball bearings, four-point contact ball bearings
Update date：2026-04-17
Application:Industry,mechanical and electrical,cleaning agent,machine lathe,medical equipment,motor,tower crane,respirator,ignition system,Special Equipment,Cylinder Standard
Similar models:BD-23036 CCK/W33-H 3036 H 3034 30306 6303/VA201 30326T142/DB SAFS 23038 KATLC x 6.13/16 3303 A-2RS1 HE 3036 E 6303-2RSL 23038 CC/W33
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Model No.	Inner Diameter	Outer Diameter	Width	Type
22313 E/VA405	65	140	48	Bearings, units and housings
24370	61.9252	88.9	11.13	Seals
431884 A	355.65	482.65	60.32	Bearings, units and housings
7028 ACD/P4A	140	210	33	Bearings, units and housings
706 CD/P4A	6	17	6	Bearings, units and housings
7319 BEGAY	95	200	45	Bearings, units and housings
GEP 670 FS	670	950	450	Bearings, units and housings
PCM 303420 E	30	34	20	Bearings, units and housings
QJ 1056 N2MA/C4	280	420	65	Bearings, units and housings
SAF 22640 x 7.1/4 TLC	184.15	-	-	Bearings, units and housings
SAFS 22522 x 3.11/16 T	93.6625	-	-	Bearings, units and housings
SNL 3184 TURT	400	-	-	Bearings, units and housings

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