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 1256 N2MA

QJ 1256 N2MA

Dimensions

d		280	mm
D		500	mm
B		90	mm
d₁	≈	365	mm
D₁	≈	415	mm
a		390	mm
h		12.5	mm
b		15	mm
r₀		2.5	mm
r_1,2	min.	5	mm

Abutment dimensions

d_a	min.	302	mm
D_a	max.	478	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	728	kN
Basic static load rating	C₀	1460	kN
Fatigue load limit	P_u	31.5	kN
Limiting speed		2000	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 1256 N2MA
Inner Diameter：280mm Outer Diameter：500mm Width：90mm
Reference speed:2000 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：2021-06-03
Application:garbage disposal,Digital Generator,equipment,Vertical machining,coupling type,engine,Spectral Products,rehabilitation training equipment,Textile Industry Accessories and Accessories,animal,physical instruments
Similar models:81256 M PCM 12012560 E K 81256 M WS 81256 QJ 1256 N2MA PCM 12012560 M GS 81256 51256 M
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Model No.	Inner Diameter	Outer Diameter	Width	Type
190 VS V	171	-	-	Seals
33x45x7 HMS5 V	33	45	7	Seals
6203 NR	17	40	12	Bearings, units and housings
71900 CE/HCP4AH	10	22	6	Bearings, units and housings
90150	-	-	34.925	Seals
95x170x13 HMS5 V	95	170	13	Seals
FYTWK 1.3/8 YTH	34.925	-	-	Bearings, units and housings
KMK 12	15	-	60	Bearings, units and housings
NNCF 4856 CV	280	350	69	Bearings, units and housings
PCM 222530 E	22	25	30	Bearings, units and housings
SI 70 TXE-2LS	70	-	49	Bearings, units and housings
SY 1.3/8 TF	34.925	-	-	Bearings, units and housings

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Hot number： 1625242 3309 ATN9 6010-2Z 6207/HR22T2 6393 7021 ACD/HCP4AL 706 ACE/P4A KR 16 PPSKA NA 4834 NK 9/16 TN NNC 4860 CV NU 310 ECM P 1.1/2 FM S7015 ACD/HCP4A SAL 45 TXE-2LS