SIFT BEARING STORE CATALOG

HR30203NSKTapered Roller

HR30203 is a NSK tapered roller bearing, bore 17 mm, O.D. 40 mm, width 12 mm, dynamic rating 24.8 kN. Dimensions, drawing, interchanges and price.

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Bore d17mm
Outside dia. D40mm
Width B12mm
Dynamic Cr24.8kN
Static C0r19.9kN
Limiting speed9,500rpm
Weight0.079kg
Cr / C0r1.25
Mean dia. dm28.5mm

Original catalogue drawing - NSK E1103, page 261

HR30203 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. D40 mmBore d17 mmWidth B12 mmCup width C11 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 diameter170.6693
DOutside diameter401.5748
BInner-ring / bearing width120.4724
TOverall assembly width13.250.5217
CCup / outer-ring width110.4331
rChamfer (min)10.0394

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)17
Outside dia. D (mm)40
Width B (mm)12
Overall width T (mm)13.25
Cup width C (mm)11

Load ratings & speeds

Basic dynamic load rating Cr (lbs)5575
Basic static load rating Cor (lbs)4474
Basic dynamic load rating Cr (N)24800
Basic static load rating C0r (N)19900
Limiting speed - grease (rpm)9,500

Weight

Weight (kg)0.079

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)1

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
46,200102564
64,1333922,181
83,1001,0245,689
102,4802,15411,969
151,6538,32346,241

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 24,800 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.261 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1203-TVHFAGBall1740128.1 kN0.073
6203FAGBall1740129.5 kN0.065
6203-2RSRFAGBall1740129.5 kN0.067
6203-2ZFAGBall1740129.5 kN0.067
6203-CFAGBall17401210.4 kN0.062
6203-C-2BRSFAGBall17401210.4 kN0.065
6203-C-2HRSFAGBall17401210.4 kN0.067
6203-C-2ZFAGBall17401210.4 kN0.067
S6203FAGBall1740129.5 kN0.065
S6203-2RSRFAGBall1740129.5 kN0.067

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1203NSKBall1740121,800 lbs0.073
6203NSKBall1740122,150 lbs0.064
7203BNSKBall1740122,090 lbs0.068
HR30203JNSKTapered Roller1740124,520 lbs0.077
7203NSKPrecision / Angular Contact17401211.9 kN0.067
7203A5NSKPrecision / Angular Contact1740122,360 lbs0.064
7203CNSKPrecision / Angular Contact1740122,450 lbs0.064

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
30303NSKTapered Roller17471427 kN0.129
32303NSKTapered Roller1747197,530 lbs0.177
HR30203JNSKTapered Roller1740124,520 lbs0.077
HR30303NSKTapered Roller17471436 kN0.134
HR30303JNSKTapered Roller1747146,560 lbs0.136
HR32203JNSKTapered Roller1740166,090 lbs0.104
HR32303NSKTapered Roller17471946 kN0.178
A6067/A6157NSKTapered Roller16.9939.9911.153,360 lbs0.073

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