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：2026-08-20
Application:test laboratory equipment and accessories,Safety protection,security equipment,equipment,Storage Tool,reinforced machinery,power source,vertical sawing machine,blood cell reagent,preservation equipment,Digital Generator
Similar models:K 81252 M GS 81252 81252 M 51252 M WS 81252 QJ 1252 N2MA QJ 1252 MA
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Model No. Inner Diameter Outer Diameter Width Type

294/1000 EF
FYNT 45 F
RNA 4908
S7000 CD/HCP4A
W 637/9 R-2Z

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Model No.	Inner Diameter	Outer Diameter	Width	Type
294/1000 EF
FYNT 45 F
RNA 4908
S7000 CD/HCP4A
W 637/9 R-2Z