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 1288 N2MA

QJ 1288 N2MA

Dimensions

d		440	mm
D		790	mm
B		155	mm
d₁	≈	574	mm
D₁	≈	656	mm
a		615	mm
h		20.5	mm
b		32	mm
r₀		3	mm
r_1,2	min.	7.5	mm

Abutment dimensions

d_a	min.	476	mm
D_a	max.	754	mm
r_a	max.	6	mm

Calculation data

Basic dynamic load rating	C	1400	kN
Basic static load rating	C₀	3750	kN
Fatigue load limit	P_u	64	kN
Limiting speed		1200	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

350

Model Number: QJ 1288 N2MA
Inner Diameter：440mm Outer Diameter：790mm Width：155mm
Reference speed:1200 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:medical equipment,security,universal category,circulating pump,printing equipment,Cutting Machine,Die,medical equipment,other lathe,Digital Generator,pressure control valve
Similar models:81288 M QJ 1288 N2MA 51288 F
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Model No.	Inner Diameter	Outer Diameter	Width	Type
25x62x10 HMS5 V	25	62	10	Seals
30314T84/DB	70	150	-	Bearings, units and housings
315-Z	75	160	37	Bearings, units and housings
6315 N	75	160	37	Bearings, units and housings
7226 BGAF	130	230	40	Bearings, units and housings
7411 BM	55	140	33	Bearings, units and housings
99874	129.9972	139.5222	25.2984	Seals
FSAF 1518 x 3.1/4 T	82.55	-	-	Bearings, units and housings
G 16x22x3	16	22	3	Seals
NUP 219 ECM	95	170	32	Bearings, units and housings
SNW 3130x5.3/16	131.7625	181.102	107.4674	Bearings, units and housings
SYR 4	101.6	-	-	Bearings, units and housings

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