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：2026-04-16
Application:quality inspection equipment,supporting facilities,other processing,casting embedding,set bacteria instrument,Other Machine Tools,stamping die and its equipment,Forging machine,municipal machinery,small diesel generators,tobacco machinery
Similar models:SNL 3096 TURT NJG 2309 VH 2309 ETN9 54309 + U 309 NU 309 ECNP BD-C 2209 KTN9-H 309 E 6309-RS1 NN 3092 K/SPW33 309 NR WS 89309
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