SIFT BEARING STORE CATALOG

20330-MBFAGSpherical Roller

20330-MB is a FAG spherical roller bearing, bore 150 mm, O.D. 320 mm, width 65 mm, dynamic rating 720 kN. Dimensions, drawing, interchanges and price.

Brass cage
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Bore d150mm
Outside dia. D320mm
Width B65mm
Dynamic Cr720kN
Static C0r950kN
Limiting speed2,250rpm
Weight26.9kg
Cr / C0r0.76
Mean dia. dm235mm

Original catalogue drawing - FAG Schaeffler HR 1, page 658

20330-MB 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. D320 mmBore d150 mmWidth B65 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 diameter1505.9055
DOutside diameter32012.5984
BInner-ring / bearing width652.5591
rChamfer (min)40.1575

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)150
Outside dia. D (mm)320
Width B (mm)65
Inner-ring shoulder dia. D1 (mm)275.8

Load ratings & speeds

Basic dynamic load rating Cr (lbs)161862
Basic static load rating Cor (lbs)213568
Basic dynamic load rating Cr (N)720000
Basic static load rating C0r (N)950000
Fatigue limit load Cur (N)74000
Limiting speed nG (rpm)2,250

Weight

Weight (kg)26.9

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)4
Shaft shoulder da (mm)167
Housing shoulder Da (mm)303
Housing fillet ra max (mm)3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 700 rpm
4180,0001022,419
6120,0003929,345
890,0001,02424,381
1072,0002,15451,296
1548,0008,323198,178

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 720,000 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.658 (dimensions)

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
6330NSKBall1503206561,700 lbs25.991
7330BNSKBall1503206564,800 lbs25.31
330NSKCylindrical Roller15032065133,000 lbs26.308
NU330ENSKCylindrical Roller15032065930 kN27.1
30330NSKTapered Roller15032065155,000 lbs24.204
HR30330NSKTapered Roller150320651020 kN25
HR31330JNSKTapered Roller15032065137,100 lbs28.477
7330NSKPrecision / Angular Contact15032065350 kN26

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
6330FAGBall15032065300 kN22.4
6330-MFAGBall15032065280 kN26.5
QJ330-N2-MPAFAGBall15032065510 kN28
N330-E-M1FAGCylindrical Roller15032065900 kN26.8
N330-E-XL-M1FAGCylindrical Roller15032065900 kN26.9
NJ330-E-M1FAGCylindrical Roller15032065900 kN27.2
NJ330-E-XL-M1FAGCylindrical Roller15032065900 kN27.4
NU330-E-M1FAGCylindrical Roller15032065900 kN26.8

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
20230-K-MB-C3FAGSpherical Roller15027045430 kN11.6
20230-MBFAGSpherical Roller15027045430 kN11.7
22230-E1-XLFAGSpherical Roller150270731010 kN18.2
22230-E1-XL-KFAGSpherical Roller150270731010 kN17.8
22330-E1-XLFAGSpherical Roller1503201081640 kN42.2
22330-E1-XL-KFAGSpherical Roller1503201081640 kN40.9
22330-E1-XL-K-T41AFAGSpherical Roller1503201081640 kN40.9
22330-E1-XL-T41DFAGSpherical Roller1503201081640 kN42.2

Request a quotation for 20330-MB

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