SIFT BEARING STORE CATALOG

55206/55437TimkenTapered Roller

55206/55437 is a Timken tapered roller bearing, bore 52.39 mm, O.D. 111.12 mm, width 26.91 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d52.39mm
Outside dia. D111.12mm
Width B26.91mm
Dynamic Cr126kN
Static C0r119kN
Weight1.24kg
Cr / C0r1.06
Mean dia. dm81.8mm

Original catalogue drawing - Timken TRB Catalog, page 210

55206/55437 Timken Tapered 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. D111.12 mmBore d52.39 mmWidth B26.91 mmCup width C20.64 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 diameter52.3872.0625
DOutside diameter111.1254.375
BInner-ring / bearing width26.9091.0594
TOverall assembly width30.1621.1875
CCup / outer-ring width20.6380.8125
rChamfer (min)3.30.1299

Notes

Tapered roller bearings are cone / cup assemblies; cone and cup weights are listed separately and the total is their sum. 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)52.387
Bore d (in)2.0625
Outside dia. D (mm)111.125
Outside dia. D (in)4.3750
Width B (mm)26.909
Overall width T (mm)30.162
Overall width T (in)1.1875
Cup width C (mm)20.638

Load ratings & speeds

Basic dynamic load rating Cr (lbs)28300
Basic static load rating Cor (lbs)26700
Basic dynamic load rating Cr (N)126000
Basic static load rating C0r (N)119000
Dynamic rating C1 (N, ISO)126000
Dynamic rating C1 (lbf, ISO)28300
Radial rating C90 (N)32700
Radial rating C90 (lbf)7350
Thrust rating Ca90 (N)49500
Thrust rating Ca90 (lbf)11100
Static rating C0 (N)119000
Static rating C0 (lbf)26700
Factor e0.88
Factor Y0.68
Factor K0.66
Geometry factor G136.8
Geometry factor G213.2
Geometry factor Cg0.1085
Effective load centre a (mm)7.1

Weight

Weight (kg)1.24

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)3.3
Shaft shoulder da (mm)63.9
Shaft shoulder db (mm)72.0
Housing shoulder Da (mm)105.0
Housing shoulder Db (mm)92.0
Cage projection Aa (mm)4.8
Cage projection Ab (mm)3.2

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
431,5001023,386
621,00039213,083
815,7501,02434,133
1012,6002,15471,814
158,4008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 126,000 N. Hours = L10 x 106 / (60n). Life-modification factors for lubrication, contamination and temperature (aISO) are not included.

Source & traceability

BrandTimken
Source catalogueTimken Tapered Roller Bearing Catalog (2016)
Catalogue pagep.210 (dimensions)
Series typeTS

ISO dynamic rating C1, Timken C90 / Ca90, static rating C0, geometry factors and assembly weight.

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
55206C/55437TimkenTapered Roller52.39111.1226.91151 kN1.33

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
55206/55433DTimkenTapered Roller52.39109.9863.5220 kN2.61
55206/55434TimkenTapered Roller52.39109.9826.91-1.18
55206/55443TimkenTapered Roller52.39112.7126.91126 kN1.27
55206/55444DTimkenTapered Roller52.39112.7165.09220 kN2.73

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
28584/28520TimkenTapered Roller52.3989.9825.498.9 kN0.62
28584/28521TimkenTapered Roller52.3992.0825.498.9 kN0.66
33890/33821TimkenTapered Roller52.3995.2528.57130 kN0.83
33890/33821DTimkenTapered Roller52.3995.2563.5226 kN1.83
33891/33821TimkenTapered Roller52.3995.2528.57130 kN0.82
33891/33821DTimkenTapered Roller52.3995.2563.5226 kN1.81
3767/3720TimkenTapered Roller52.3993.2630.3122 kN0.83
3767/3729DTimkenTapered Roller52.3993.2665.09213 kN1.78

Request a quotation for 55206/55437

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