SIFT BEARING STORE CATALOG

LM451349/LM451310TimkenTapered Roller

LM451349/LM451310 is a Timken tapered roller bearing, bore 266.7 mm, O.D. 355.6 mm, width 57.15 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d266.7mm
Outside dia. D355.6mm
Width B57.15mm
Dynamic Cr880kN
Static C0r1510kN
Weight14.92kg
Cr / C0r0.58
Mean dia. dm311.1mm

Original catalogue drawing - Timken TRB Catalog, page 358

LM451349/LM451310 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. D355.6 mmBore d266.7 mmWidth B57.15 mmCup width C44.45 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 diameter266.710.5
DOutside diameter355.614
BInner-ring / bearing width57.152.25
TOverall assembly width57.152.25
CCup / outer-ring width44.451.75
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)266.700
Bore d (in)10.5000
Outside dia. D (mm)355.600
Outside dia. D (in)14.0000
Width B (mm)57.150
Overall width T (mm)57.150
Overall width T (in)2.2500
Cup width C (mm)44.450

Load ratings & speeds

Basic dynamic load rating Cr (lbs)198000
Basic static load rating Cor (lbs)339000
Basic dynamic load rating Cr (N)880000
Basic static load rating C0r (N)1510000
Dynamic rating C1 (N, ISO)880000
Dynamic rating C1 (lbf, ISO)198000
Radial rating C90 (N)228000
Radial rating C90 (lbf)51300
Thrust rating Ca90 (N)141000
Thrust rating Ca90 (lbf)31600
Static rating C0 (N)1510000
Static rating C0 (lbf)339000
Factor e0.36
Factor Y1.67
Factor K1.62
Geometry factor G11554.1
Geometry factor G2212.2
Geometry factor Cg0.1536
Effective load centre a (mm)5.1

Weight

Weight (kg)14.92
Cone weight (kg)10.52
Cup weight (kg)4.36
Total weight (kg)14.88

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)3.3
Shaft shoulder da (mm)281.0
Shaft shoulder db (mm)285.0
Housing shoulder Da (mm)342.9
Housing shoulder Db (mm)335.0
Cage projection Aa (mm)5.8
Cage projection Ab (mm)3.4

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4220,0001023,386
6146,66739213,083
8110,0001,02434,133
1088,0002,15471,814
1558,6678,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 880,000 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.358 (dimensions) / p.186 (cone) / p.185 (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
LM451349A/LM451310TimkenTapered Roller266.7355.657.15805 kN14.79

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
LM451349/LM451310CDTimkenTapered Roller266.7355.61271530 kN31.82

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29880/29820TimkenTapered Roller266.7323.8522.23151 kN3.36
29880/29820DTimkenTapered Roller266.7323.8563.5263 kN9.04
38885/38820TimkenTapered Roller266.7325.4428.57221 kN4.91
38886/38820TimkenTapered Roller266.7325.4433.47227 kN5.35
EE275105/275155TimkenTapered Roller266.7393.769.851010 kN26.36
EE275105/275156CDTimkenTapered Roller266.7393.7157.161760 kN55.47
EE275105/275156DTimkenTapered Roller266.7393.7157.161760 kN55.11
EE275105/275158TimkenTapered Roller266.7403.2369.851010 kN27.75

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