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 306 N2MA

QJ 306 N2MA

SKF Explorer

Dimensions

d		30	mm
D		72	mm
B		19	mm
d₁	≈	40.5	mm
D₁	≈	58.2	mm
a		36	mm
h		3.5	mm
b		4.5	mm
r₀		0.5	mm
r_1,2	min.	1.1	mm

Abutment dimensions

d_a	min.	37	mm
D_a	max.	65	mm
r_a	max.	1	mm

Calculation data

Basic dynamic load rating	C	53	kN
Basic static load rating	C₀	41.5	kN
Fatigue load limit	P_u	1.76	kN
Limiting speed		17000	r/min
Calculation factor	A	5.084
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

0.42

Model Number: QJ 306 N2MA
Inner Diameter：30mm Outer Diameter：72mm Width：19mm
Reference speed:17000 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：2025-12-09
Application:Vertical machining,training beds etc,Storage Tool,textile machinery,vacuum suction cup,agriculture,marine analysis and testing equipment,Handling machinery and various industrial machinery,municipal machinery,light therapy instrument,forklift truck
Similar models:306614 SNL 3060 G 7306 ACCBM 23068 CC/W33 NJ 306 ECJ BD-C 3060 KM-AOH 3060 W 6306-2RS1 6306-2Z 6306 ETN9 23060 CCK/W33
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Model No.	Inner Diameter	Outer Diameter	Width	Type
14383	36.5252	63.55	7.95	Seals
17x28x7 HMSA10 RG	17	28	7	Seals
2205 ETN9	25	52	18	Bearings, units and housings
29472 EM	360	640	170	Bearings, units and housings
365x405x18 HDS2 R	365	405	18	Seals
450x490x20 HDS1 R	450	490	20	Seals
597780	609.6	-	-	Seals
6003-RSL	17	35	10	Bearings, units and housings
NJ 212 ECP	60	110	22	Bearings, units and housings
PCM 161820 E	16	18	20	Bearings, units and housings
SSAFS 22518	80.9625	-	-	Bearings, units and housings
WS 81207	35		5.25	Bearings, units and housings

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