SIFT BEARING STORE CATALOG

30244NSKTapered Roller

30244 is a NSK tapered roller bearing, bore 220 mm, O.D. 400 mm, width 68 mm, dynamic rating 182,000 lbs. Dimensions, drawing, interchanges and price.

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Bore d220mm
Outside dia. D400mm
Width B68mm
Dynamic Cr182,000lbs
Static C0r259,000lbs
Limiting speed850rpm
Weight33.607kg
Cr / C0r0.7
Mean dia. dm310mm

Original catalogue drawing - NSK catalogue, page 105

30244 NSK Tapered 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. D400 mmBore d220 mmWidth B68 mmCup width C54 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 width682.6772
TOverall assembly width722.8346
CCup / outer-ring width542.126

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
Bore d (in)8.6614
Outside dia. D (mm)400
Outside dia. D (in)15.7480
Width B (mm)68
Width B (in)2.6772
Overall width T (mm)72
Overall width T (in)2.8346
Cup width C (mm)54
Cup width C (in)2.1260

Load ratings & speeds

Basic dynamic load rating Cr (lbs)182000
Basic static load rating Cor (lbs)259000
Limiting speed - grease (rpm)850
Limiting speed - oil (rpm)1,100

Weight

Weight (kg)33.607

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.12
Shaft shoulder da min (in)9.724
Housing shoulder Da max (in)15.039
Shaft shoulder db max (in)10.512

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 200 rpm
4202,3941028,466
6134,92939232,708
8101,1971,02485,333
1080,9582,154179,536
1553,9728,323693,622

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 809,576 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandNSK
Source catalogueNSK inch product catalogue
Catalogue pagep.107 (dimensions) / p.108 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30344NSKTapered Roller22046088321,000 lbs72.411
32344NSKTapered Roller220460145454,000 lbs114.02
HR32044XJNSKTapered Roller22034076885,000 lbs24.403
HR32244JNSKTapered Roller220400108326,000 lbs59.407
HR32944NSKTapered Roller22030051600 kN10.3
HR32944JNSKTapered Roller22030051110,000 lbs10.301

Request a quotation for 30244

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