SIFT BEARING STORE CATALOG

3311-DA-MAFAGPrecision / Angular Contact

3311-DA-MA is a FAG precision / angular contact bearing, bore 55 mm, O.D. 120 mm, width 49.2 mm. Dimensions, drawing, interchanges and price.

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Bore d55mm
Outside dia. D120mm
Width B49.2mm
Dynamic Cr110kN
Static C0r100kN
Limiting speed5,000rpm
Weight2.85kg
Cr / C0r1.1
Mean dia. dm87.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 264

3311-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. D120 mmBore d55 mmWidth B49.2 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 diameter552.1654
DOutside diameter1204.7244
BInner-ring / bearing width49.21.937
rChamfer (min)20.0787

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)55
Outside dia. D (mm)120
Width B (mm)49.2
Inner-ring OD d1 (mm)94.6
Inner-ring shoulder dia. D1 (mm)105.3

Load ratings & speeds

Basic dynamic load rating Cr (lbs)24729
Basic static load rating Cor (lbs)22481
Basic dynamic load rating Cr (N)110000
Basic static load rating C0r (N)100000
Fatigue limit load Cur (N)5400
Limiting speed nG (rpm)5,000
Reference speed nB (rpm)5,200
Effective load centre a (mm)111

Weight

Weight (kg)2.85

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)2
Shaft shoulder da (mm)66
Housing shoulder Da (mm)109
Housing fillet ra max (mm)2

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,600 rpm
427,50064667
618,3332162,250
813,7505125,333
1011,0001,00010,417
157,3333,37535,156

Basic rating life per ISO 281: L10 = (C/P)3 with C = 110,000 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.264 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
3311JNSKBall5512049.222,000 lbs2.545
5311JNSKBall5512049.221,400 lbs2.313
5311TNGNSKBall5512049.222,900 lbs2.105
63311DDUNSKBall5512049.2116,070 lbs2.322
5311NSKPrecision / Angular Contact5512049.2105 kN2.4

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
3311-B-2RSR-TVHFAGPrecision / Angular Contact5512049.2102 kN2.35
3311-B-2Z-TVHFAGPrecision / Angular Contact5512049.2102 kN2.36
3311-B-TVHFAGPrecision / Angular Contact5512049.2102 kN2.32
3311-BD-XL-2HRS-TVHFAGPrecision / Angular Contact5512049.2116 kN2.264
3311-BD-XL-2Z-TVHFAGPrecision / Angular Contact5512049.2116 kN2.265
3311-BD-XL-TVHFAGPrecision / Angular Contact5512049.2116 kN2.28

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
3311-B-2RSR-TVHFAGPrecision / Angular Contact5512049.2102 kN2.35
3311-B-2Z-TVHFAGPrecision / Angular Contact5512049.2102 kN2.36
3311-B-TVHFAGPrecision / Angular Contact5512049.2102 kN2.32
3311-BD-XL-2HRS-TVHFAGPrecision / Angular Contact5512049.2116 kN2.264
3311-BD-XL-2Z-TVHFAGPrecision / Angular Contact5512049.2116 kN2.265
3311-BD-XL-TVHFAGPrecision / Angular Contact5512049.2116 kN2.28

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
3211-B-2RSR-TVHFAGPrecision / Angular Contact5510033.358.5 kN0.969
3211-B-TVHFAGPrecision / Angular Contact5510033.358.5 kN0.954
3211-BD-XL-2HRS-TVHFAGPrecision / Angular Contact5510033.361 kN0.933
3211-BD-XL-2Z-TVHFAGPrecision / Angular Contact5510033.361 kN0.93
3211-BD-XL-TVHFAGPrecision / Angular Contact5510033.361 kN0.94
3811-B-2RS-TVHFAGPrecision / Angular Contact55721310.7 kN0.134
3811-B-2RSR-TVHFAGPrecision / Angular Contact55721312.1 kN0.09
3811-B-2RZ-TVHFAGPrecision / Angular Contact55721310.7 kN0.134

Request a quotation for 3311-DA-MA

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