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 1252 N2MA

QJ 1252 N2MA

Dimensions

d		260	mm
D		480	mm
B		90	mm
d₁	≈	345	mm
D₁	≈	395	mm
a		370	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	741	kN
Basic static load rating	C₀	1460	kN
Fatigue load limit	P_u	32	kN
Limiting speed		2200	r/min
Calculation factor	e	1.34
Calculation factor	X	0.54
Calculation factor	Y₀	0.44
Calculation factor	Y₁	0.47
Calculation factor	Y₂	0.81

Mass

Mass bearing

Model Number: QJ 1252 N2MA
Inner Diameter：260mm Outer Diameter：480mm Width：90mm
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:Dental Equipment,Pneumatic Actuator,bathroom facilities,Industry,Cleaning equipment,Warehouse Shelf Equipment,Other Machine Tools,vacuum suction cup,plant determination,sleep monitoring,Small air generators
Similar models:WS 81252 81252 M QJ 1252 N2MA K 81252 M QJ 1252 MA 51252 M GS 81252
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Model No.	Inner Diameter	Outer Diameter	Width	Type
12 VS R	10.5	-	-	Seals
13734	34.925	60.3	7.95	Seals
1550 VRME R	1467	-	-	Seals
407006	630	-	-	Seals
505 VRME R	493	-	-	Seals
7011 ACE/P4AL	55	90	18	Bearings, units and housings
71902 ACD/HCP4A	15	28	7	Bearings, units and housings
AH 3138 G	180	190	125	Bearings, units and housings
BD-C 3160 K-OH 3160 H	280	500	160	Bearings, units and housings
NU 2216 ECML	80	140	33	Bearings, units and housings
PSM 152115 A51	15	21	15	Bearings, units and housings
QJ 1252 MA	260	480	90	Bearings, units and housings

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