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：2025-12-09
Application:historical instruments,floor industry,PVC,cooling system,gear grinding machine,gas turbine,spreader series,Machine tool accessories,pressure control valve,Blood coagulation reagent,Doppler
Similar models:7203 BECBP 6203-2ZNR YAT 203 30203 1726203-2RS1 N 203 ECP NUP 203 ECP BC4B 322039/HA1 51203 V/HR11T1 YAT 211-203
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Hot number： 13030 32514 470641 6216 N 6312 N 6315-2Z/VA208 BD-C 3164 KM-OH 3164 H IR 12x15x12 OH 3156 H NU 1028 M NUKR 35 XA NUKR 52 A S71909 CD/HCP4A W 61701-2ZS W 639/3-2Z