SIFT BEARING STORE CATALOG

3318-DA-MAFAGPrecision / Angular Contact

3318-DA-MA is a FAG precision / angular contact bearing, bore 90 mm, O.D. 190 mm, width 73 mm. Dimensions, drawing, interchanges and price.

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Bore d90mm
Outside dia. D190mm
Width B73mm
Dynamic Cr226kN
Static C0r247kN
Limiting speed4,850rpm
Weight10.41kg
Cr / C0r0.91
Mean dia. dm140mm

Original catalogue drawing - FAG Schaeffler HR 1, page 344

3318-DA-MA FAG Precision / Angular Contact 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. D190 mmBore d90 mmWidth B73 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 diameter903.5433
DOutside diameter1907.4803
BInner-ring / bearing width732.874
rChamfer (min)30.1181

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)90
Outside dia. D (mm)190
Width B (mm)73
Inner-ring OD d1 (mm)131.9
Inner-ring shoulder dia. D1 (mm)166.2

Load ratings & speeds

Basic dynamic load rating Cr (lbs)50807
Basic static load rating Cor (lbs)55528
Basic dynamic load rating Cr (N)226000
Basic static load rating C0r (N)247000
Fatigue limit load Cur (N)11300
Limiting speed nG (rpm)4,850
Reference speed nB (rpm)3,450
Effective load centre a (mm)177

Weight

Weight (kg)10.41

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)3
Shaft shoulder da (mm)104
Housing shoulder Da (mm)176
Housing fillet ra max (mm)2.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,600 rpm
456,50064667
637,6672162,250
828,2505125,333
1022,6001,00010,417
1515,0673,37535,156

Basic rating life per ISO 281: L10 = (C/P)3 with C = 226,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandFAG
Source catalogueFAG / Schaeffler Rolling Bearings HR 1
Catalogue pagep.344 (dimensions)

Load ratings in newtons, fatigue limit load Cur, limiting speed nG and reference speed nB.

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
3318FAGPrecision / Angular Contact9019073245 kN9.23

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
3318FAGPrecision / Angular Contact9019073245 kN9.23

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
3218FAGPrecision / Angular Contact9016052.4140 kN4.22
3218-B-2RS-TVHFAGPrecision / Angular Contact9016052.4142 kN4
3218-B-TVHFAGPrecision / Angular Contact9016052.4142 kN3.8
3818-B-2RS-TVHFAGPrecision / Angular Contact901151927 kN0.422
3818-B-TVHFAGPrecision / Angular Contact901151927 kN0.41
7218-B-JPFAGPrecision / Angular Contact9016030106 kN2.38
7218-B-TVPFAGPrecision / Angular Contact9016030106 kN2.21
7218-B-XL-JPFAGPrecision / Angular Contact9016030114 kN2.38

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