SIFT BEARING STORE CATALOG

LM104949E/LM104911TimkenTapered Roller

LM104949E/LM104911 is a Timken tapered roller bearing, bore 50.8 mm, O.D. 82.55 mm, height 51.77 mm. Dimensions, drawing, interchanges and price.

Brass cageCone + cup assembly
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Bore d50.8mm
Outside dia. D82.55mm
Overall width T51.77mm
Dynamic Cr168kN
Weight0.97kg
Mean dia. dm66.7mm

Original catalogue drawing - Timken TRB Catalog, page 674

LM104949E/LM104911 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. D82.55 mmBore d50.8 mmOverall width T51.77 mmCup width C41.61 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 diameter50.82
DOutside diameter82.553.25
TOverall assembly width51.7662.038
CCup / outer-ring width41.6061.638

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)50.800
Bore d (in)2.0000
Outside dia. D (mm)82.550
Outside dia. D (in)3.2500
Overall width T (mm)51.766
Overall width T (in)2.0380
Cup width C (mm)41.606
Cup width C (in)1.6380

Load ratings & speeds

Basic dynamic load rating Cr (lbs)37700
Basic dynamic load rating Cr (N)168000
Dynamic rating C1 (N, ISO)168000
Dynamic rating C1 (lbf, ISO)37700
Radial rating C90 (N)25000
Radial rating C90 (lbf)5610
Thrust rating Ca90 (N)13000
Thrust rating Ca90 (lbf)2930
Factor e0.31
Factor Y12.21
Factor Y23.29
Factor K1.91

Weight

Weight (kg)0.97

Mounting dimensions (fillets / shoulders)

Shaft shoulder db (mm)62.0
Housing shoulder Da (mm)78.0

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
442,0001023,386
628,00039213,083
821,0001,02434,133
1016,8002,15471,814
1511,2008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 168,000 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.674 (dimensions)
Series typeTS

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

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
18200/18335ETimkenTapered Roller50.88518.26-0.42
18200/18337TimkenTapered Roller50.885.7218.2661.1 kN0.39
18790/18720TimkenTapered Roller50.88517.4654.7 kN0.36
18790/18721TimkenTapered Roller50.883.3117.4654.7 kN0.34
18790/18723TimkenTapered Roller50.888.917.4654.7 kN0.48
18790/18724TimkenTapered Roller50.888.917.4654.7 kN0.42
28580/28520TimkenTapered Roller50.889.9825.498.9 kN0.66
28580/28521TimkenTapered Roller50.892.0825.498.9 kN0.7

Request a quotation for LM104949E/LM104911

Send us the quantity you need and we will come back with price and lead time, normally within 24 hours. Equivalent parts from other brands can be quoted at the same time.

Online enquiry formrichard@bearingsfit.com