SIFT BEARING STORE CATALOG

2303NSKBall

2303 is a NSK ball bearing, bore 17 mm, O.D. 47 mm, width 19 mm, dynamic rating 3,210 lbs. Dimensions, drawing, interchanges and price.

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Bore d17mm
Outside dia. D47mm
Width B19mm
Dynamic Cr3,210lbs
Static C0r1,020lbs
Limiting speed14,000rpm
Weight0.177kg
Cr / C0r3.15
Mean dia. dm32mm

Original catalogue drawing - NSK catalogue, page 29

2303 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. D47 mmBore d17 mmWidth B19 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 diameter471.8504
BInner-ring / bearing width190.748
rChamfer (min)0.9910.039

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
Bore d (in)0.6693
Outside dia. D (mm)47
Outside dia. D (in)1.8504
Width B (mm)19
Width B (in)0.7480

Load ratings & speeds

Basic dynamic load rating Cr (lbs)3210
Basic static load rating Cor (lbs)1020
Limiting speed - grease (rpm)14,000
Limiting speed - oil (rpm)17,000

Weight

Weight (kg)0.177

Mounting dimensions (fillets / shoulders)

Chamfer r (in)0.039
Shaft shoulder da min (in)0.867
Housing shoulder Da max (in)1.655

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 3,000 rpm
43,57064356
62,3802161,200
81,7855122,844
101,4281,0005,556
159523,37518,750

Basic rating life per ISO 281: L10 = (C/P)3 with C = 14,279 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.31 (dimensions) / p.32 (ratings)

Dimensions in inches and millimetres, load ratings in lbs.

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
2303-2RS-TVHFAGBall17471912.9 kN0.175
2303-TVHFAGBall17471913.9 kN0.155
4303-B-TVHFAGBall17471920.9 kN0.178
62303-2RSRFAGBall17471914.3 kN0.152
32303-AFAGTapered Roller17471936 kN0.18

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
32303NSKTapered Roller1747197,530 lbs0.177
HR32303NSKTapered Roller17471946 kN0.178

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
1203NSKBall1740121,800 lbs0.073
1303NSKBall1747142,810 lbs0.136
16003NSKBall173586.6 kN0.033
2203NSKBall1740162,200 lbs0.086
3203JNSKBall174017.52,880 lbs0.104
3303JNSKBall174722.24,520 lbs0.191
5203JNSKBall174017.53,290 lbs0.091
5203TNGNSKBall174017.53,280 lbs0.086

Request a quotation for 2303

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.