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 309 MA

QJ 309 MA

SKF Explorer

Dimensions

d		45	mm
D		100	mm
B		25	mm
d₁	≈	58	mm
D₁	≈	81.2	mm
a		51	mm
r_1,2	min.	1.5	mm

Abutment dimensions

d_a	min.	54	mm
D_a	max.	91	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	100	kN
Basic static load rating	C₀	83	kN
Fatigue load limit	P_u	3.55	kN
Limiting speed		12000	r/min
Calculation factor	A	20.15
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

1.05

Model Number: QJ 309 MA
Inner Diameter：45mm Outer Diameter：100mm Width：25mm
Reference speed:12000 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:wire industry,drawing die,Textile Industry Accessories and Accessories,instrumentation instrument,Forming mold,Tool,building decoration raw materials and accessories,manual Tools,chemical,crimping tools,hydraulic connector
Similar models:NJ 309 ECP HJ 309 EC 6309 NR C 3092 KM 3309 DMA SAF 22309 30309 H 2309 309-ZNR NUP 309 ECJ
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7307 BEGBP	35	80	21	Bearings, units and housings
K 20x28x25	20	28	25	Bearings, units and housings
OKC 630	630		-
OKTC 345	-	535	-
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SAFS 23048 KA x 8.1/2	215.9	-	-	Bearings, units and housings
SYR 1 3/4	44.45	-	-	Bearings, units and housings
WS 89330	150		20.5	Bearings, units and housings

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