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：2021-06-07
Application:Medium and large motor,machining,Storage Tool,Control,Display Devices,key lock,walking Food processing machinery and equipment,engineering machine,impression material,Liposuction device,tray industry
Similar models:SAF 23040 KATLC x 7.3/16 6304-2RSH SNW 3040x7-7/16 6304 NR SAFS 23040 KATLC x 7.3/16 SSAFS 23040 KATLC x 7.3/16 6304-ZNR SAF 23040 KA x 7.1/4 SAF 23044 KA x 8 SSAFS 23044 KATLC x 7.13/16
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140 VA R	126	-	-	Seals
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90895	-	-	20	Seals
91342	-	-	42.875	Seals
D/W R12-2Z	19.05	41.275	11.113	Bearings, units and housings
FSAF 1517 T	74.6125	-	-	Bearings, units and housings
GE 260 TXA-2LS	260	370	110	Bearings, units and housings
NNU 4952 B/SPW33	260	360	100	Bearings, units and housings
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SE 513-611	57.15	-	-	Bearings, units and housings

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