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 230 N2MA

QJ 230 N2MA

SKF Explorer

Dimensions

d		150	mm
D		270	mm
B		45	mm
d₁	≈	194	mm
D₁	≈	226	mm
a		147	mm
h		11.7	mm
b		10.5	mm
r₀		2	mm
r_1,2	min.	3	mm

Abutment dimensions

d_a	min.	164	mm
D_a	max.	256	mm
r_a	max.	2.5	mm

Calculation data

Basic dynamic load rating	C	400	kN
Basic static load rating	C₀	570	kN
Fatigue load limit	P_u	16.6	kN
Limiting speed		4000	r/min
Calculation factor	A	793.04
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

12.5

Model Number: QJ 230 N2MA
Inner Diameter：150mm Outer Diameter：270mm Width：45mm
Reference speed:4000 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:woodworking machinery,wall materials,light therapy instrument,gear type,Special Equipment,Other Machine Tools,van,thin metal materials,office outdoor camping equipment,Medium and large motor,reinforced machinery
Similar models:SSAFS 23044 KAT x 7.13/16 NJ 2230 ECM SAF 23052 KATLC x 9.1/2 SAF 23036 KA x 6.3/8 SAFS 23038 KAT x 6.7/8 SSAFS 23026 KA x 4.3/8 SAF 23028 KATLC x 4.15/16 SSAFS 23028 KAT x 4.7/8 H 2305 BD-23032 CCK/W33-H 3032
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Model No.	Inner Diameter	Outer Diameter	Width	Type
24x50x10 HMSA10 RG	24	50	10	Seals
38x55x8 CRW1 R	38	55	8	Seals
48x70x8 CRW1 R	48	70	8	Seals
7208 ACD/P4A	40	80	18	Bearings, units and housings
7303 BECBP	17	47	14	Bearings, units and housings
7313 BEGBP	65	140	33	Bearings, units and housings
GEZH 508 ES	139.7	222.25	125.73	Bearings, units and housings
GS 81164	320	400	19	Bearings, units and housings
NNU 41/600 M/W33	600	980	375	Bearings, units and housings
NU 1292 MA	460	830	165	Bearings, units and housings
NU 332 ECML	160	340	68	Bearings, units and housings
SI 8 E	8	-	8	Bearings, units and housings

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