SIFT BEARING STORE CATALOG

NU344NSKCylindrical Roller

NU344 is a NSK cylindrical roller bearing, bore 220 mm, O.D. 460 mm, width 88 mm, dynamic rating 1470 kN. Dimensions, drawing, interchanges and price.

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Bore d220mm
Outside dia. D460mm
Width B88mm
Dynamic Cr1470kN
Static C0r1570kN
Weight74.6kg
Cr / C0r0.94
Mean dia. dm340mm

Original catalogue drawing - NSK E1103, page 243

NU344 NSK Cylindrical Roller bearing catalogue drawing

Scanned from the manufacturer catalogue page listing this part number. All part numbers printed on that table share the same drawing.

Scale cross-section

DdBOutside dia. D460 mmBore d220 mmWidth B88 mm

Blue = inner / outer ring, yellow = rolling element. Drawn to scale from this part's own dimensions for selection reference only - not a manufacturing or assembly drawing.

Dimension table (mm / inch)

SymbolDimensionmminch
dBore diameter2208.6614
DOutside diameter46018.1102
BInner-ring / bearing width883.4646
rChamfer (min)50.1969

Notes

Weights are given in kg. Load ratings are shown in both the original catalogue units and the converted value (1 N = 0.2248 lbf). Data is provided for selection reference only - confirm against the latest official catalogue before ordering.

Main dimensions

Bore d (mm)220
Outside dia. D (mm)460
Width B (mm)88

Load ratings & speeds

Basic dynamic load rating Cr (lbs)330469
Basic static load rating Cor (lbs)352950
Basic dynamic load rating Cr (N)1470000
Basic static load rating C0r (N)1570000

Weight

Weight (kg)74.6

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)5
Chamfer r1 min (mm)5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4367,5001023,386
6245,00039213,083
8183,7501,02434,133
10147,0002,15471,814
1598,0008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,470,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandNSK
Source catalogueNSK CAT. No. E1103 (metric)
Catalogue pagep.243 (dimensions)

Load ratings in newtons, weights in kg, limiting speeds for grease and oil lubrication.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6344-MFAGBall22046088440 kN73.7
QJ344-N2-MPAFAGBall22046088900 kN77.1
NU344-E-M1FAGCylindrical Roller220460881430 kN75.5
NU344-E-TB-M1FAGCylindrical Roller220460881440 kN75.5
30344FAGTapered Roller220460881440 kN68

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
344NSKCylindrical Roller22046088268,000 lbs74.843
30344NSKTapered Roller22046088321,000 lbs72.411

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
1044NSKCylindrical Roller22034056112,000 lbs18.144
2244NSKCylindrical Roller220400108255,000 lbs61.689
244NSKCylindrical Roller22040065171,000 lbs37.195
344NSKCylindrical Roller22046088268,000 lbs74.843
NCF1844VNSKCylindrical Roller22027024235 kN2.7
NCF2944VNSKCylindrical Roller22030048680 kN9.6
NU1044NSKCylindrical Roller22034056615 kN18.2
NU2244NSKCylindrical Roller2204001081400 kN61.8

Request a quotation for NU344

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