SIFT BEARING STORE CATALOG

EE420751/421437TimkenTapered Roller

EE420751/421437 is a Timken tapered roller bearing, bore 190.5 mm, O.D. 365.05 mm, width 88.9 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d190.5mm
Outside dia. D365.05mm
Width B88.9mm
Dynamic Cr1170kN
Static C0r1820kN
Weight39.68kg
Cr / C0r0.64
Mean dia. dm277.8mm

Original catalogue drawing - Timken TRB Catalog, page 338

EE420751/421437 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. D365.05 mmBore d190.5 mmWidth B88.9 mmCup width C63.5 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 diameter190.57.5
DOutside diameter365.04914.372
BInner-ring / bearing width88.8973.4999
TOverall assembly width92.0753.625
CCup / outer-ring width63.52.5
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)190.500
Bore d (in)7.5000
Outside dia. D (mm)365.049
Outside dia. D (in)14.3720
Width B (mm)88.897
Overall width T (mm)92.075
Overall width T (in)3.6250
Cup width C (mm)63.500

Load ratings & speeds

Basic dynamic load rating Cr (lbs)263000
Basic static load rating Cor (lbs)409000
Basic dynamic load rating Cr (N)1170000
Basic static load rating C0r (N)1820000
Dynamic rating C1 (N, ISO)1170000
Dynamic rating C1 (lbf, ISO)263000
Radial rating C90 (N)303000
Radial rating C90 (lbf)68100
Thrust rating Ca90 (N)208000
Thrust rating Ca90 (lbf)46800
Static rating C0 (N)1820000
Static rating C0 (lbf)409000
Factor e0.40
Factor Y1.49
Factor K1.45
Geometry factor G11150.5
Geometry factor G2128.2
Geometry factor Cg0.1450
Effective load centre a (mm)-15.5

Weight

Weight (kg)39.68

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)6.4
Housing fillet r max (mm)3.3
Shaft shoulder da (mm)218.0
Shaft shoulder db (mm)227.0
Housing shoulder Da (mm)334.4
Housing shoulder Db (mm)329.0
Cage projection Aa (mm)19.1
Cage projection Ab (mm)2.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4292,5001023,386
6195,00039213,083
8146,2501,02434,133
10117,0002,15471,814
1578,0008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 1,170,000 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.338 (dimensions)
Series typeTS

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
EE420751/421417TimkenTapered Roller190.536088.91170 kN38.26
EE420751/421450TimkenTapered Roller190.5368.388.91170 kN40.61
EE420751/421451CDTimkenTapered Roller190.5368.3193.682030 kN84.09

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
470975/470132TimkenTapered Roller190.5336.55209.551640 kN65.05
67885/67820TimkenTapered Roller190.5266.746.83416 kN7.96
82788/82720TimkenTapered Roller190.5288.9355.56577 kN12.3
82788/82722TimkenTapered Roller190.5284.1655.56577 kN11.55
87750/87111TimkenTapered Roller190.5282.5747.62509 kN9.49
93750/93125TimkenTapered Roller190.5317.54.3-19.82
93750/93127CDTimkenTapered Roller190.5317.5146.051270 kN43.25
93751D/93125TimkenTapered Roller190.5317.5133.351270 kN41.89

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