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 203 N2MA

QJ 203 N2MA

SKF Explorer

Dimensions

d		17	mm
D		40	mm
B		12	mm
d₁	≈	23.5	mm
D₁	≈	32.5	mm
a		20	mm
h		2.5	mm
b		3.5	mm
r₀		0.5	mm
r_1,2	min.	0.6	mm

Abutment dimensions

d_a	min.	21.2	mm
D_a	max.	35.8	mm
r_a	max.	0.6	mm

Calculation data

Basic dynamic load rating	C	17	kN
Basic static load rating	C₀	11.4	kN
Fatigue load limit	P_u	0.48	kN
Limiting speed		30000	r/min
Calculation factor	A	0.427
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

0.082

Model Number: QJ 203 N2MA
Inner Diameter：17mm Outer Diameter：40mm Width：12mm
Reference speed:30000 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：2026-08-24
Application:air conditioning tools,crimping tools,boring bar boring bar,Solenoid Valves,motor,Forming mold,stacker lift platform,paper processing machine,Other Measurements,Roller mill,oral medical device
Similar models:RNU 2203 ECP 6203-Z YET 203 RNU 203 ECP 6203-2Z/VA201 PSM 152030 A51 NU 2203 ECP 6203 NR YAR 212-203-2F 7203 CD/P4A
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Model No. Inner Diameter Outer Diameter Width Type

55x70x10 HMSA10 V
7007 ACD/P4A
71915 CD/HCP4AH1
7311 BEGBY
RNA 2204.2RS

Purchase the SKF QJ 203 N2MA Angular contact ball bearings, four-point contact ball bearings Please fill in the following

Hot number： 29867 50130 594163 6022-2RS1 61868 6770 7021 CD/HCP4AL 71911 CD/HCP4AL AH 2309 D/W R4-2Z D/W RW1 R-2Z GEH 45 ES-2RS GEZM 100 ES-2RS K 81144 M ZW 20x28

Model No.	Inner Diameter	Outer Diameter	Width	Type
55x70x10 HMSA10 V
7007 ACD/P4A
71915 CD/HCP4AH1
7311 BEGBY
RNA 2204.2RS