SIFT BEARING STORE CATALOG

6244NSKBall

6244 is a NSK ball bearing, bore 220 mm, O.D. 400 mm, width 65 mm, dynamic rating 340 kN. Dimensions, drawing, interchanges and price.

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Bore d220mm
Outside dia. D400mm
Width B65mm
Dynamic Cr340kN
Static C0r375kN
Limiting speed1,300rpm
Weight37.4kg
Cr / C0r0.91
Mean dia. dm310mm

Original catalogue drawing - NSK E1103, page 185

6244 NSK Ball 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. D400 mmBore d220 mmWidth B65 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 diameter40015.748
BInner-ring / bearing width652.5591
rChamfer (min)40.1575

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)400
Width B (mm)65

Load ratings & speeds

Basic dynamic load rating Cr (lbs)76435
Basic static load rating Cor (lbs)84303
Basic dynamic load rating Cr (N)340000
Basic static load rating C0r (N)375000
Factor f015.1
Limiting speed - grease (rpm)1,300
Limiting speed - oil (rpm)1,600

Weight

Weight (kg)37.4

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)4

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 400 rpm
485,000642,667
656,6672169,000
842,50051221,333
1034,0001,00041,667
1522,6673,375140,625

Basic rating life per ISO 281: L10 = (C/P)3 with C = 340,000 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.185 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6244-MFAGBall22040065300 kN37.9
QJ244-N2-MPAFAGBall22040065630 kN38.6
NJ244-E-M1FAGCylindrical Roller22040065950 kN38.7
NU244-E-M1FAGCylindrical Roller22040065950 kN38.1
NUP244-E-M1FAGCylindrical Roller22040065950 kN39.3
30244-AFAGTapered Roller22040065950 kN34.6
30244-XLFAGTapered Roller220400651120 kN34.5
B7244-C-T-P4SFAGPrecision / Angular Contact22040065400 kN33
B7244-E-T-P4SFAGPrecision / Angular Contact22040065380 kN32.9
30244TimkenTapered Roller220400651100 kN35.25

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
244NSKCylindrical Roller22040065171,000 lbs37.195
NU244ENSKCylindrical Roller220400651110 kN37.4

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
16044NSKBall22034037198 kN13.1
6044NSKBall22034056259 kN18.6
6844NSKBall2202702484 kN2.9
6944NSKBall22030038161 kN7.88

Request a quotation for 6244

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.