Bearings, units and housings -- Roller bearings -- Cylindrical roller bearings -- Single row cylindrical roller bearings -- Cylindrical roller bearings, single row SKF NJ 344 M

NJ 344 M

Dimensions

d		220	mm
D		460	mm
B		88	mm
d₁	≈	307	mm
D₁	≈	371	mm
F		284	mm
r_1,2	min.	5	mm
s	max.	5.2	mm

Abutment dimensions

d_a	min.	240	mm
d_a	max.	277	mm
d_b	min.	311	mm
D_a	max.	440	mm
r_a	max.	4	mm

Calculation data

Basic dynamic load rating	C	1210	kN
Basic static load rating	C₀	1630	kN
Fatigue load limit	P_u	150	kN
Reference speed		1500	r/min
Limiting speed		1700	r/min
Calculation factor	k_r	0.15
Limiting value	e	0.2
Axial load factor	Y	0.6

Mass

Mass bearing

73.5

Model Number: NJ 344 M
Inner Diameter：220mm Outer Diameter：460mm Width：88mm
Reference speed:1700 r/min Limiting speed:1500 r/min
Type：Bearings, units and housings Roller bearings Cylindrical roller bearings Single row cylindrical roller bearings
Details： Single row cylindrical roller bearings Cylindrical roller bearings, single row
Update date：2026-04-19
Application:rolling mill roll neck and slowdown device,hydraulic cylinder buffer,Automobile,storage and transportation equipment,Hydraulic Rama,Vertical pull,lathe,ultra-quiet generators,PVC,Anti-defibrillation pacing,cleaning agent
Similar models:QJ 1268 MA/344524 NU 2344 ECMP 22344 CCJA/W33VA405 NUH 2344 ECMH/PEX QJ 1248 MA/344524 22344 CCK/W33 + AOH 2344 HJ 344 NUH 2344 ECMH L 183449/410 NU 2344 ECML
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