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 304 N2MA

QJ 304 N2MA

SKF Explorer

Dimensions

d		20	mm
D		52	mm
B		15	mm
d₁	≈	27.5	mm
D₁	≈	40.8	mm
a		25	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.	27	mm
D_a	max.	45	mm
r_a	max.	1	mm

Calculation data

Basic dynamic load rating	C	32	kN
Basic static load rating	C₀	21.6	kN
Fatigue load limit	P_u	0.93	kN
Limiting speed		24000	r/min
Calculation factor	A	1.428
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

0.18

Model Number: QJ 304 N2MA
Inner Diameter：20mm Outer Diameter：52mm Width：15mm
Reference speed:24000 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:pump accessories,aerial work platform,Industrial,Pneumatic Control Valves,sterilizers,medical equipment,surgical instruments,food sterilization,root canal filling,Industrial,industrial equipment
Similar models:SSAFS 23044 KA x 8 BD-C 3040 K-AH 3040 G SAFS 23048 KA x 8.1/2 H 3040 RNU 2304 ECP NU 304 ECP HA 3040 NN 3048 K/SPW33 NCF 3048 CV 6304
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