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：2021-06-08
Application:atomizer class,pneumatic Pump,metallurgical mold,respirator,Safety protection,mechanical and electrical,paint paint,lifting equipment Hoisting hoist,Broadcasting System,mobile toilet,Anti-defibrillation pacing
Similar models:51288 F 81288 M QJ 1288 N2MA
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Model No.	Inner Diameter	Outer Diameter	Width	Type
220x250x15 HMS5 RG	220	250	15	Seals
BD-23138 CCK/W33-H 3138	170	320	104	Bearings, units and housings
36740	93.6752	114.33	11.13	Seals
4700566	1193.8	1244.6	22.23	Seals
71830 CD/HCP4	150	190	20	Bearings, units and housings
BD-C 3088 KMB-OH 3088 HE	410	650	157	Bearings, units and housings
FYE 2 11/16	68.2625	-	-	Bearings, units and housings
KR 35 B	-	35	18	Bearings, units and housings
N 312 ECP	60	130	31	Bearings, units and housings
SNP 148x8.15/16	227.0125	290.6522	205.7146	Bearings, units and housings
SC 30 ES	30	-	22	Bearings, units and housings
Z 006	30	-	5	Seals

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