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 1248 MA/344524

QJ 1248 MA/344524

Dimensions

d		240	mm
D		440	mm
B		85	mm
d₁	≈	316	mm
D₁	≈	364	mm
a		340	mm
r_1,2	min.	4	mm

Abutment dimensions

d_a	min.	258	mm
D_a	max.	422	mm
r_a	max.	3	mm

Calculation data

Basic dynamic load rating	C	663	kN
Basic static load rating	C₀	1220	kN
Fatigue load limit	P_u	28	kN
Limiting speed		2400	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 1248 MA/344524
Inner Diameter：240mm Outer Diameter：440mm Width：85mm
Reference speed:2400 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：2024-12-12
Application:Laser Cutting,Machine Tool Accessories,Other Machine Tools,office equipment,plant determination,electronic materials,Cylinder Standard,roller lathe,multi-knife lathe,Pneumatic Control Elements,Textile Industry Accessories and Accessories
Similar models:GS 81248 51248 M QJ 1248 MA/344524 K 81248 M 81248 M WS 81248
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Model No.	Inner Diameter	Outer Diameter	Width	Type
1093440	277.8252	323.85	15.88	Seals
316200	850	1030	74	Bearings, units and housings
404703	458	-	-	Seals
6218-2Z/VA228	90	160	30	Bearings, units and housings
BK 1312	13	19	12	Bearings, units and housings
ECY 205	-	-	-	Bearings, units and housings
NCF 2234 ECJB	170	310	86	Bearings, units and housings
NCF 28/950 V	950	1150	118	Bearings, units and housings
NUP 306 ECJ	30	72	19	Bearings, units and housings
PCM 758040 M	75	80	40	Bearings, units and housings
PSMF 455535 A51	45	55	35	Bearings, units and housings
ZW 45x55	45	55	2	Seals

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Hot number： 11086 1700 VL V 29887 3025660 32026 X 360x404x20 HDS2 R 6310-2Z/VA228 95x125x12 HMS5 RG 99086 HA 3032 HME 3172 NU 1018 M/C3VL0241 NUP 2318 ECP PRMF 606530 SI 15 C