SIFT BEARING STORE CATALOG

20311-K-TVP-C3FAGSpherical Roller

20311-K-TVP-C3 is a FAG spherical roller bearing, bore 55 mm, O.D. 120 mm, width 29 mm. Dimensions, drawing, interchanges and price.

Tapered boreC3 clearancePolyamide cage
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Bore d55mm
Outside dia. D120mm
Width B29mm
Dynamic Cr120kN
Static C0r138kN
Limiting speed5,400rpm
Weight1.49kg
Cr / C0r0.87
Mean dia. dm87.5mm

Original catalogue drawing - FAG Schaeffler HR 1, page 660

20311-K-TVP-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. D120 mmBore d55 mmWidth B29 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 width291.1417
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)29
Inner-ring shoulder dia. D1 (mm)101.7

Load ratings & speeds

Basic dynamic load rating Cr (lbs)26977
Basic static load rating Cor (lbs)31024
Basic dynamic load rating Cr (N)120000
Basic static load rating C0r (N)138000
Fatigue limit load Cur (N)12300
Limiting speed nG (rpm)5,400

Weight

Weight (kg)1.49

Mounting dimensions (fillets / shoulders)

Housing fillet r max (mm)2
Shaft shoulder da (mm)72
Shaft shoulder db (mm)60
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 1,800 rpm
430,000102941
620,0003923,634
815,0001,0249,481
1012,0002,15419,948
158,0008,32377,069

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 120,000 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
1311NSKBall551202911,500 lbs1.642
6311NSKBall551202916,100 lbs1.352
7311BNSKBall551202916,800 lbs1.52
BL311NSKBall551202919,900 lbs1.465
311NSKCylindrical Roller551202924,900 lbs1.451
NU311ENSKCylindrical Roller5512029169 kN1.64
21311EAE4NSKSpherical Roller5512029178 kN1.58
HR30311NSKTapered Roller5512029184 kN1.63
HR30311JNSKTapered Roller551202933,700 lbs1.628
HR31311NSKTapered Roller5512029161 kN1.58

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
1311-K-TVH-C3FAGBall551202952 kN1.55
1311-TVHFAGBall551202952 kN1.57
6311FAGBall551202976.5 kN1.39
6311-2RSRFAGBall551202976.5 kN1.43
6311-2ZFAGBall551202976.5 kN1.43
6311-CFAGBall551202983 kN1.33
6311-C-2BRSFAGBall551202983 kN1.38
6311-C-2HRSFAGBall551202983 kN1.37

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
20311-TVPFAGSpherical Roller5512029120 kN1.53

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
20211-K-TVP-C3FAGSpherical Roller551002174 kN0.642
20211-TVPFAGSpherical Roller551002174 kN0.653
21311-E1-XLFAGSpherical Roller5512029160 kN1.28
21311-E1-XL-KFAGSpherical Roller5512029160 kN1.28
22211-E1-XLFAGSpherical Roller5510025129 kN0.822
22211-E1-XL-KFAGSpherical Roller5510025129 kN0.825
22311-E1-XLFAGSpherical Roller5512043265 kN2.27
22311-E1-XL-KFAGSpherical Roller5512043265 kN2.2

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