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 228 N2MA

QJ 228 N2MA

SKF Explorer

Dimensions

d		140	mm
D		250	mm
B		42	mm
d₁	≈	179	mm
D₁	≈	211	mm
a		137	mm
h		11.7	mm
b		10.5	mm
r₀		2	mm
r_1,2	min.	3	mm

Abutment dimensions

d_a	min.	154	mm
D_a	max.	236	mm
r_a	max.	2.5	mm

Calculation data

Basic dynamic load rating	C	345	kN
Basic static load rating	C₀	475	kN
Fatigue load limit	P_u	14.3	kN
Limiting speed		4300	r/min
Calculation factor	A	555.53
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

9.85

Model Number: QJ 228 N2MA
Inner Diameter：140mm Outer Diameter：250mm Width：42mm
Reference speed:4300 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:storage and transportation equipment,extruder,leather processing,municipal machinery,test laboratory equipment and accessories,vertical sawing machine,car instrument,Vertical pull,Chromatography Products,bio-chemical,ECG
Similar models:NUP 228 ECJ FYT 55 TF/VA228 SAW 23228 TLC 6210-2Z/VA228 FY 1.3/4 TF/VA228 23228 CCK/W33 6214-2Z/VA228 7228 ACD/P4A FYT 1.11/16 TF/VA228 SY 45 TF/VA228
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24032 CCK30/W33	160	240	80	Bearings, units and housings
54209 + U 209	35	73	39.6	Bearings, units and housings
5399	14	28.55	5.16	Seals
812/670 M	670	900	180	Bearings, units and housings
FNL 520 B	90	-	-	Bearings, units and housings
IR 8x12x12.5	8	12	12.5	Bearings, units and housings
NNF 5036 ADA-2LSV	180	280	136	Bearings, units and housings
PSMF 253220 A51	25	32	20	Bearings, units and housings
SAFS 22516-11 x 2.5/8 TLC	66.675	-	-	Bearings, units and housings
SYK 20 WD	20	-	-	Bearings, units and housings
W 619/4-2Z	4	11	4	Bearings, units and housings
Z 014 F	70	-	7	Seals

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Hot number： 24134 CCK30/W33 28745 50x64x6 HMSA10 RG 510/850 M 523547 7014 ACD/P4A 7014 CE/HCP4AH1 GRA 3040 KM 34 NA 2205.2RSX NA 4906.2RS NATR 10 PPXA NU 218 ECJ SAF 1610 W 61903 R