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 252 N2MA

QJ 252 N2MA

Dimensions

d		260	mm
D		480	mm
B		80	mm
d₁	≈	342	mm
D₁	≈	397	mm
a		259	mm
h		12.5	mm
b		15	mm
r₀		2.5	mm
r_1,2	min.	5	mm

Abutment dimensions

d_a	min.	282	mm
D_a	max.	458	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	728	kN
Basic static load rating	C₀	1430	kN
Fatigue load limit	P_u	32	kN
Limiting speed		2200	r/min
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

Model Number: QJ 252 N2MA
Inner Diameter：260mm Outer Diameter：480mm Width：80mm
Reference speed:2200 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:noise reduction equipment,Roller,Anesthetic Equipment,Medical equipment,Air,large agricultural machinery,shaft milling machine,set bacteria instrument,Warehouse Shelf Equipment,coal,education model Instruments
Similar models:FSAF 22520 x 3.3/8 TLC SAFS 22524 x 4.1/8 SSAFS 22522 SAFS 22520 SSAFS 22520 x 3.3/8 T SSAFS 22520 x 3.5/16 T FSAF 22520 x 3.1/2 TLC SAF 22526 x 4.1/2 SAFS 22520 x 3.3/8 SSAFS 22520 x 3.5/16 TLC
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Model No.	Inner Diameter	Outer Diameter	Width	Type
12335	31.75	42.85	6.35	Seals
22228 CC/W33	140	250	68	Bearings, units and housings
29262	74.6252	98.45	9.53	Seals
31305/DF	25	62	-	Bearings, units and housings
330x390x25 HDS1 R	330	390	25	Seals
7004 ACE/HCP4AL	20	42	12	Bearings, units and housings
70892 AM	460	580	37	Bearings, units and housings
81260 M	300	420	95	Bearings, units and housings
87421	-	-	63.5	Seals
C 4013-2CS5V/GEM9	65	100	35	Bearings, units and housings
PFT 40 TF	40	-	-	Bearings, units and housings
SAF 22509 x 1.3/8 T	34.925	-	-	Bearings, units and housings

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Hot number： BD-23972 CCK/W33-OH 3972 H 313477 B 313685 B 63x90x10 HMSA10 RG 86688 AOH 240/530 G K 40x47x20 NJ 316 ECJ OKCX 240 PCZ 1414 M SAFS 22536 x 6.5/16 T SHR 42 SSAFS 22522 T SSAFS 23056 KAT x 10 SY 45 TF/VA201