SIFT BEARING STORE CATALOG

HM266448/HM266410TimkenTapered Roller

HM266448/HM266410 is a Timken tapered roller bearing, bore 384.18 mm, O.D. 546.1 mm, width 104.78 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d384.18mm
Outside dia. D546.1mm
Width B104.78mm
Dynamic Cr2270kN
Static C0r4210kN
Weight74.41kg
Cr / C0r0.54
Mean dia. dm465.1mm

Original catalogue drawing - Timken TRB Catalog, page 374

HM266448/HM266410 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. D546.1 mmBore d384.18 mmWidth B104.78 mmCup width C82.55 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 diameter384.17515.125
DOutside diameter546.121.5
BInner-ring / bearing width104.7754.125
TOverall assembly width104.7744.125
CCup / outer-ring width82.553.25
rChamfer (min)6.40.252

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)384.175
Bore d (in)15.1250
Outside dia. D (mm)546.100
Outside dia. D (in)21.5000
Width B (mm)104.775
Overall width T (mm)104.774
Overall width T (in)4.1250
Cup width C (mm)82.550

Load ratings & speeds

Basic dynamic load rating Cr (lbs)510000
Basic static load rating Cor (lbs)946000
Basic dynamic load rating Cr (N)2270000
Basic static load rating C0r (N)4210000
Dynamic rating C1 (N, ISO)2270000
Dynamic rating C1 (lbf, ISO)510000
Radial rating C90 (N)588000
Radial rating C90 (lbf)132000
Thrust rating Ca90 (N)335000
Thrust rating Ca90 (lbf)75200
Static rating C0 (N)4210000
Static rating C0 (lbf)946000
Factor e0.33
Factor Y1.80
Factor K1.76
Geometry factor G14383.4
Geometry factor G2278.7
Geometry factor Cg0.2116
Effective load centre a (mm)-7.1

Weight

Weight (kg)74.41
Cone weight (kg)51.73
Cup weight (kg)23.38
Total weight (kg)75.11

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)6.4
Housing fillet r max (mm)6.4
Shaft shoulder da (mm)407.0
Shaft shoulder db (mm)417.0
Housing shoulder Da (mm)520.0
Housing shoulder Db (mm)507.0
Cage projection Aa (mm)9.0
Cage projection Ab (mm)5.5

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4567,5001023,386
6378,33339213,083
8283,7501,02434,133
10227,0002,15471,814
15151,3338,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 2,270,000 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.374 (dimensions) / p.159 (cone) / p.159 (cup)
Series typeTS

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
HM266449/HM266410TimkenTapered Roller384.18546.1104.782460 kN77.78

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
HM266448/HM266410CDTimkenTapered Roller384.18546.1222.253950 kN153.74

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
HM266448D/HM266410TimkenTapered Roller384.18546.1193.683950 kN147.14
HM266449/HM266410TimkenTapered Roller384.18546.1104.782460 kN77.78
HM266449/HM266410CDTimkenTapered Roller384.18546.1222.254290 kN160.48
HM266449D/HM266410TimkenTapered Roller384.18546.1193.683660 kN154.73
HM266449TD/HM266410TimkenTapered Roller384.18546.1193.684290 kN157.92
LL365347/LL365310TimkenTapered Roller384.18441.323.5-6.62
LL365348/LL365310TimkenTapered Roller384.18441.3228.57232 kN6.23
LM665949/LM665910TimkenTapered Roller385.76514.3582.551350 kN45.18

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