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：2026-04-19
Application:other rubber,thin metal materials,experimental equipment,electromagnetic clutch,Special Equipment,glass processing machine,machine tool spindle,non-motor vehicle Electric car,Antenna Industry,steam Hydraulic control element,safety testing
Similar models:FY 1.11/16 TF/VA228 30228/DF YAR 211-203-2FW/VA228 6219-2Z/VA228 23228 CCK/W33 SSAFS 22228 TLC FYT 1.3/8 TF/VA228 NCF 2228 V SAFS 22228 TLC BD-23228 CCK/W33-H 2328
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