SIFT BEARING STORE CATALOG

HR30321JNSKTapered Roller

HR30321J is a NSK tapered roller bearing, bore 105 mm, O.D. 225 mm, width 49 mm. Dimensions, drawing, interchanges and price.

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Bore d105mm
Outside dia. D225mm
Width B49mm
Dynamic Cr102,000lbs
Static C0r127,000lbs
Limiting speed1,640rpm
Weight9.525kg
Cr / C0r0.8
Mean dia. dm165mm

Original catalogue drawing - NSK catalogue, page 107

HR30321J 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. D225 mmBore d105 mmWidth B49 mmCup width C41 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 diameter1054.1339
DOutside diameter2258.8583
BInner-ring / bearing width491.9291
TOverall assembly width53.52.1063
CCup / outer-ring width411.6142

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)105
Bore d (in)4.1339
Outside dia. D (mm)225
Outside dia. D (in)8.8583
Width B (mm)49
Width B (in)1.9291
Overall width T (mm)53.5
Overall width T (in)2.1063
Cup width C (mm)41
Cup width C (in)1.6142

Load ratings & speeds

Basic dynamic load rating Cr (lbs)102000
Basic static load rating Cor (lbs)127000
Limiting speed - grease (rpm)1,640
Limiting speed - oil (rpm)2,230

Weight

Weight (kg)9.525

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.10
Shaft shoulder da min (in)4.843
Housing shoulder Da max (in)8.307
Shaft shoulder db max (in)5.272

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4113,4301023,386
675,62039213,083
856,7151,02434,133
1045,3722,15471,814
1530,2488,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 453,719 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.109 (dimensions) / p.110 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1321-MFAGBall10522549158 kN10.3
6321FAGBall10522549188 kN8.7
30321-XLFAGTapered Roller10522549530 kN10.5
7321-B-MPFAGPrecision / Angular Contact10522549209 kN9
7321-B-XL-MPFAGPrecision / Angular Contact10522549225 kN9.3

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1321NSKBall10522549169 kN9.58
6321NSKBall1052254941,300 lbs8.119
7321BNSKBall1052254942,800 lbs9.389
321NSKCylindrical Roller1052254971,500 lbs8.618
NU321ENSKCylindrical Roller10522549525 kN9.84
HR30321NSKTapered Roller10522549560 kN9.52
HR31321JNSKTapered Roller1052254976,400 lbs10.043
7321NSKPrecision / Angular Contact10522549210 kN9.43

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
HR30221NSKTapered Roller10519036345 kN4.51
HR30221JNSKTapered Roller1051903662,900 lbs4.509
HR30321NSKTapered Roller10522549560 kN9.52
HR31321NSKTapered Roller10522553510 kN10
HR31321JNSKTapered Roller1052254976,400 lbs10.043
HR32021NSKTapered Roller10516035250 kN2.48
HR32021XJNSKTapered Roller10516035204,000 lbs2.481
HR32221NSKTapered Roller10519050445 kN6.25

Request a quotation for HR30321J

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.

Online enquiry formrichard@bearingsfit.com