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 307 N2MA

QJ 307 N2MA

SKF Explorer

Dimensions

d		35	mm
D		80	mm
B		21	mm
d₁	≈	46.2	mm
D₁	≈	64.3	mm
a		40	mm
h		4	mm
b		5.5	mm
r₀		0.5	mm
r_1,2	min.	1.5	mm

Abutment dimensions

d_a	min.	44	mm
D_a	max.	71	mm
r_a	max.	1.5	mm

Calculation data

Basic dynamic load rating	C	64	kN
Basic static load rating	C₀	51	kN
Fatigue load limit	P_u	2.16	kN
Limiting speed		15000	r/min
Calculation factor	A	7.437
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

0.57

Model Number: QJ 307 N2MA
Inner Diameter：35mm Outer Diameter：80mm Width：21mm
Reference speed:15000 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：2026-04-17
Application:Cylinder Pneumatic Treatment Element,clean stationery,mechanical annex,die casting mold,air conditioning tools,forklift industry,agrochemical,atomizer class,rehabilitation training equipment,tray industry,sawing machine
Similar models:W 6307 N 307 ECP 2307 EKTN9 2307 ETN9 7307 BEGAP 52307 AOH 3076 G 1307 ETN9 NJ 2307 ECP BD-C 3072 KM-AOH 3072 G
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Model No.	Inner Diameter	Outer Diameter	Width	Type
BD-22352 CCK/W33-AOH 2352 G	240	540	165	Bearings, units and housings
24892 CAMA/W20	460	580	118	Bearings, units and housings
25590/25522	45.618	83.058	23.876	Bearings, units and housings
40x62x8 HMS5 RG	40	62	8	Seals
53412 M + U 412	60	130	54	Bearings, units and housings
708 CD/P4A	8	22	7	Bearings, units and housings
FYTB 40 FM	40	-	-	Bearings, units and housings
PCM 353930 E	35	39	30	Bearings, units and housings
SAF 23038 KAT x 6.7/8	176.2125	-	-	Bearings, units and housings
SAF 23048 KAT x 9	227.0125	-	-	Bearings, units and housings
SSAFS 22540	182.5625	-	-	Bearings, units and housings
SY 55 FM	55	-	-	Bearings, units and housings

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Hot number： 18733 BD-230/750 CAK/W33-AOH 30/750 23984 CCK/W33 466952 AS 75100 FYTWK 1.3/8 YTA K 42x47x30 ZW KD10-254 NJ 215 ECML NKIS 25 SAF 22526 TLC SAF 23024 KAT x 4.1/4 SI 45 TXE-2LS SIJ 80 ES SSAFS 23040 KATLC x 7.1/8