SIFT BEARING STORE CATALOG

LM778549/LM778510DTimkenTapered Roller

LM778549/LM778510D is a Timken tapered roller bearing, bore 584.2 mm, O.D. 762 mm, height 228.6 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d584.2mm
Outside dia. D762mm
Overall width T228.6mm
Dynamic Cr4220kN
Weight245.35kg
Mean dia. dm673.1mm

Original catalogue drawing - Timken TRB Catalog, page 604

LM778549/LM778510D 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. D762 mmBore d584.2 mmOverall width T228.6 mmCup width C169.86 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 diameter584.223
DOutside diameter76230
TOverall assembly width228.69
CCup / outer-ring width169.8626.6875
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)584.200
Bore d (in)23.0000
Outside dia. D (mm)762.000
Outside dia. D (in)30.0000
Overall width T (mm)228.600
Overall width T (in)9.0000
Cup width C (mm)169.862
Cup width C (in)6.6875

Load ratings & speeds

Basic dynamic load rating Cr (lbs)949000
Basic dynamic load rating Cr (N)4220000
Dynamic rating C1 (N, ISO)4220000
Dynamic rating C1 (lbf, ISO)949000
Radial rating C90 (N)628000
Radial rating C90 (lbf)141000
Thrust rating Ca90 (N)509000
Thrust rating Ca90 (lbf)114000
Factor e0.47
Factor Y11.43
Factor Y22.12
Factor K1.24
Geometry factor G18573.3
Geometry factor G2722.5
Geometry factor Cg0.2936

Weight

Weight (kg)245.35

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)6.4
Housing fillet r max (mm)1.5
Shaft shoulder db (mm)621.0
Housing shoulder Da (mm)736.9

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
41,055,0001023,386
6703,33339213,083
8527,5001,02434,133
10422,0002,15471,814
15281,3338,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 4,220,000 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.604 (dimensions)
Series typeTDO

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
LM778549/LM778510TimkenTapered Roller584.27626.4-117.06

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
EE662303/663550TimkenTapered Roller584.2901.7139.74980 kN305.28
EE662303/663551DTimkenTapered Roller584.2901.7298.458670 kN612.14
L778149/L778110TimkenTapered Roller584.2709.6157.151210 kN43.61
LL778149/LL778110TimkenTapered Roller584.2685.849.21798 kN29.06
LM278848D/LM278810TimkenTapered Roller585.79771.52230.195730 kN302.76
LM278849/LM278810TimkenTapered Roller585.79771.526.4--
LM278849/LM278810CDTimkenTapered Roller585.79771.52269.055730 kN323.6
LM278849D/LM278810TimkenTapered Roller585.79771.52230.195730 kN302.98

Request a quotation for LM778549/LM778510D

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