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 308 MA

QJ 308 MA

SKF Explorer

Dimensions

d		40	mm
D		90	mm
B		23	mm
d₁	≈	52	mm
D₁	≈	72.5	mm
a		46	mm
r_1,2	min.	1.5	mm

Abutment dimensions

d_a	min.	49	mm
D_a	max.	81	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	78	kN
Basic static load rating	C₀	64	kN
Fatigue load limit	P_u	2.7	kN
Limiting speed		14000	r/min
Calculation factor	A	11.177
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

0.78

Model Number: QJ 308 MA
Inner Diameter：40mm Outer Diameter：90mm Width：23mm
Reference speed:14000 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：2024-12-13
Application:climb ladder,orthodontic material,Spectrum Products,preservation equipment,Infrared Technology,chromatography,switch,Hydraulic Equipment,gear grinding machine,Plastic Equipment,non-motor vehicle Electric car
Similar models:BD-21308 EK-AH 308 22308 E/VA405 SAF 22308 HE 308 BD-23084 CAK/W33-OH 3084 H 2308 E-2RS1KTN9 SAF 22308 T NU 308 ECJ NU 308 ECP 7308 BE-2RZP
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Model No.	Inner Diameter	Outer Diameter	Width	Type
22334 CCK/W33	170	360	120	Bearings, units and housings
49966	127	158.75	12.7	Seals
7591	19.05	40	6.35	Seals
75 VA V	67	-	-	Seals
85629	-	-	50.8	Seals
C 2318 K	90	190	64	Bearings, units and housings
FYTWK 50 LTA	50	-	-	Bearings, units and housings
GRA 3013	65	88	26	Bearings, units and housings
OH 3176 H	360	490	264	Bearings, units and housings
SAF 22620 x 3.1/2 TLC	88.9	-	-	Bearings, units and housings
SYJ 25 KF	20	-	-	Bearings, units and housings
W 619/9-2RZ	9	20	6	Bearings, units and housings

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