SIFT BEARING STORE CATALOG

LM377449/LM377410CDTimkenTapered Roller

LM377449/LM377410CD is a Timken tapered roller bearing, bore 558.8 mm, O.D. 736.6 mm, height 225.43 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d558.8mm
Outside dia. D736.6mm
Overall width T225.43mm
Dynamic Cr4480kN
Weight246.52kg
Mean dia. dm647.7mm

Original catalogue drawing - Timken TRB Catalog, page 602

LM377449/LM377410CD 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

DdTOutside dia. D736.6 mmBore d558.8 mmOverall width T225.43 mmCup width C177.8 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 diameter558.822
DOutside diameter736.629
TOverall assembly width225.4258.875
CCup / outer-ring width177.87
rChamfer (min)1.50.0591

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)558.800
Bore d (in)22.0000
Outside dia. D (mm)736.600
Outside dia. D (in)29.0000
Overall width T (mm)225.425
Overall width T (in)8.8750
Cup width C (mm)177.800
Cup width C (in)7.0000

Load ratings & speeds

Basic dynamic load rating Cr (lbs)1010000
Basic dynamic load rating Cr (N)4480000
Dynamic rating C1 (N, ISO)4480000
Dynamic rating C1 (lbf, ISO)1010000
Radial rating C90 (N)667000
Radial rating C90 (lbf)150000
Thrust rating Ca90 (N)395000
Thrust rating Ca90 (lbf)88800
Factor e0.35
Factor Y11.95
Factor Y22.90
Factor K1.69
Geometry factor G19314.8
Geometry factor G2907.6
Geometry factor Cg0.2735

Weight

Weight (kg)246.52

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)6.4
Housing fillet r max (mm)1.5
Shaft shoulder db (mm)594.0
Housing shoulder Da (mm)708.0
Pin dimension Ka (mm)28.58
Pin dimension Kb (mm)16.69

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
41,120,0001023,386
6746,66739213,083
8560,0001,02434,133
10448,0002,15471,814
15298,6678,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 4,480,000 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.602 (dimensions)
Series typeTDO

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
LM377448/LM377410CDTimkenTapered Roller558.8736.6225.435130 kN246.15
LM377449H/LM377410TimkenTapered Roller558.8736.6225.434980 kN238.25

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
LM377449/LM377410TimkenTapered Roller558.8736.6104.782570 kN118.57

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
EE327220/327355TimkenTapered Roller558.8901.57129.383790 kN311.89
EE327220/327357DTimkenTapered Roller558.8901.7292.16610 kN656.31
EE542220/542290TimkenTapered Roller558.8736.676.21400 kN77.61
EE542220/542291CDTimkenTapered Roller558.8736.6165.12440 kN165.28
EE647220/647285TimkenTapered Roller558.8723.973.031540 kN73.36
EE843220/843290TimkenTapered Roller558.8736.688.112070 kN94.77
EE843220/843291CDTimkenTapered Roller558.8736.6187.333600 kN196.1
EE843220/843292DTimkenTapered Roller558.8742.95187.333600 kN204.62

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