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 1244 N2MA

QJ 1244 N2MA

Dimensions

d		220	mm
D		400	mm
B		78	mm
d₁	≈	287	mm
D₁	≈	333	mm
a		310	mm
h		12.7	mm
b		10.55	mm
r₀		2	mm
r_1,2	min.	4	mm

Abutment dimensions

d_a	min.	238	mm
D_a	max.	382	mm
r_a	max.	3	mm

Calculation data

Basic dynamic load rating	C	592	kN
Basic static load rating	C₀	1020	kN
Fatigue load limit	P_u	24.5	kN
Limiting speed		2600	r/min
Calculation factor	A	6474.09
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

45.5

Model Number: QJ 1244 N2MA
Inner Diameter：220mm Outer Diameter：400mm Width：78mm
Reference speed:2600 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:gas turbine,tapered grinder,Infrared Technology,historical instruments,Surveying Surveying Instruments,PVC,medical equipment,chuck industry,relay,Industrial Electromechanical,stirrer
Similar models:HM 911244/210 K 81244 M GS 81244 WS 81244 81244 M QJ 1244 N2MA
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Model No.	Inner Diameter	Outer Diameter	Width	Type
180 VS R	162	-	-	Seals
350x380x16 HDS1 R	350	380	16	Seals
65x85x8 HMSA10 RG	65	85	8	Seals
6x22x7 HMS5 V	6	22	7	Seals
7030 CD/P4AL	150	225	35	Bearings, units and housings
81115 TN	75	100	19	Bearings, units and housings
FY 512 M	-	-	-	Bearings, units and housings
KMT 12	26	-	60	Bearings, units and housings
NJ 226 ECP	130	230	40	Bearings, units and housings
OKF 630	630	1310	-
YARAG 207-104	31.75	72	42.9	Bearings, units and housings
YAR 211-203-2FW/VA228	55.562	100	55.6	Bearings, units and housings

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Hot number： 1150112 12407 32316 405703 4306 ATN9 99434 C 30/670 KM H 316 MS 3196 NNC 4940 CV NUB 222 ECJ SAFS 22530 x 5.5/16 T SAFS 22534 x 5.13/16 TLC SIL 70 ES-2RS SSAFS 23048 KAT x 9