SIFT BEARING STORE CATALOG

20320-K-MB-C3FAGSpherical Roller

20320-K-MB-C3 is a FAG spherical roller bearing, bore 100 mm, O.D. 215 mm, width 47 mm. Dimensions, drawing, interchanges and price.

Tapered boreC3 clearanceBrass cage
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Bore d100mm
Outside dia. D215mm
Width B47mm
Dynamic Cr365kN
Static C0r440kN
Limiting speed3,250rpm
Weight8.58kg
Cr / C0r0.83
Mean dia. dm157.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 660

20320-K-MB-C3 FAG Spherical 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. D215 mmBore d100 mmWidth B47 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 diameter1003.937
DOutside diameter2158.4646
BInner-ring / bearing width471.8504
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)100
Outside dia. D (mm)215
Width B (mm)47
Inner-ring shoulder dia. D1 (mm)186.6

Load ratings & speeds

Basic dynamic load rating Cr (lbs)82055
Basic static load rating Cor (lbs)98916
Basic dynamic load rating Cr (N)365000
Basic static load rating C0r (N)440000
Fatigue limit load Cur (N)37500
Limiting speed nG (rpm)3,250

Weight

Weight (kg)8.58

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)3
Shaft shoulder da (mm)127
Shaft shoulder db (mm)108
Housing shoulder Da (mm)201
Housing fillet ra max (mm)2.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 1,000 rpm
491,2501021,693
660,8333926,542
845,6251,02417,067
1036,5002,15435,907
1524,3338,323138,724

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 365,000 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.660 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
1320NSKBall10021547155 kN8.4
6320NSKBall1002154738,900 lbs6.94
7320BNSKBall1002154742,800 lbs8.301
320NSKCylindrical Roller1002154767,100 lbs7.711
NU320NSKCylindrical Roller10021547365 kN7.69
NU320ENSKCylindrical Roller10021547465 kN8.63
21320CAME4NSKSpherical Roller10021547495 kN8.46
21320CE4NSKSpherical Roller10021547495 kN8.46
HR30320NSKTapered Roller10021547520 kN8.41
HR30320JNSKTapered Roller1002154795,500 lbs8.41

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1320-K-M-C3FAGBall10021547145 kN8.95
1320-MFAGBall10021547145 kN9.06
6320FAGBall10021547177 kN7.67
6320-2RSRFAGBall10021547177 kN7.78
6320-2ZFAGBall10021547177 kN7.78
QJ320-N2-MPAFAGBall10021547325 kN9.04
N320-E-M1FAGCylindrical Roller10021547450 kN8.75
N320-E-XL-M1FAGCylindrical Roller10021547450 kN8.75

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
20320-MBFAGSpherical Roller10021547365 kN8.69

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
20220-K-MB-C3FAGSpherical Roller10018034225 kN3.9
20220-MBFAGSpherical Roller10018034225 kN3.96
21320-E1-XL-K-TVPBFAGSpherical Roller10021547495 kN8.08
21320-E1-XL-TVPBFAGSpherical Roller10021547495 kN8.19
22220-E1-XLFAGSpherical Roller10018046430 kN4.96
22220-E1-XL-KFAGSpherical Roller10018046430 kN4.91
22320-E1-XLFAGSpherical Roller10021573810 kN13.1
22320-E1-XL-KFAGSpherical Roller10021573810 kN13

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