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 306 MA

QJ 306 MA

SKF Explorer

Dimensions

d		30	mm
D		72	mm
B		19	mm
d₁	≈	40.5	mm
D₁	≈	58.2	mm
a		36	mm
r_1,2	min.	1.1	mm

Abutment dimensions

d_a	min.	37	mm
D_a	max.	65	mm
r_a	max.	1	mm

Calculation data

Basic dynamic load rating	C	53	kN
Basic static load rating	C₀	41.5	kN
Fatigue load limit	P_u	1.76	kN
Limiting speed		17000	r/min
Calculation factor	A	5.084
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

0.42

Model Number: QJ 306 MA
Inner Diameter：30mm Outer Diameter：72mm Width：19mm
Reference speed:17000 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：2026-06-25
Application:marine test,equipment,fruit and vegetable processing,roller lathe,stacker lift platform,pneumatic Pump,Antenna Industry,comprehensive experiment,sheet industry,ventilation heating equipment,storage shelves
Similar models:AOH 3064 G 6306 NR BK 0306 TN SNP 3064x11.15/16 6306 ETN9 QJ 306 N2PHAS 3306 A-2ZTN9/MT33 BSD 3062 C NJ 2306 ECML SNP 3060x10.15/16
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Model No. Inner Diameter Outer Diameter Width Type

318-Z
MB 9 A
N 307 ECM
NU 318 ECP
SYR 3 N

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Model No.	Inner Diameter	Outer Diameter	Width	Type
318-Z
MB 9 A
N 307 ECM
NU 318 ECP
SYR 3 N