SIFT BEARING STORE CATALOG

LM720648/LM720610TimkenTapered Roller

LM720648/LM720610 is a Timken tapered roller bearing, bore 101.6 mm, O.D. 146.05 mm, width 25.4 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d101.6mm
Outside dia. D146.05mm
Width B25.4mm
Dynamic Cr132kN
Static C0r202kN
Weight1.29kg
Cr / C0r0.65
Mean dia. dm123.8mm

Original catalogue drawing - Timken TRB Catalog, page 302

LM720648/LM720610 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. D146.05 mmBore d101.6 mmWidth B25.4 mmCup width C19.05 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 diameter101.64
DOutside diameter146.055.75
BInner-ring / bearing width25.41
TOverall assembly width25.41
CCup / outer-ring width19.050.75
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)101.600
Bore d (in)4.0000
Outside dia. D (mm)146.050
Outside dia. D (in)5.7500
Width B (mm)25.400
Overall width T (mm)25.400
Overall width T (in)1.0000
Cup width C (mm)19.050

Load ratings & speeds

Basic dynamic load rating Cr (lbs)29600
Basic static load rating Cor (lbs)45400
Basic dynamic load rating Cr (N)132000
Basic static load rating C0r (N)202000
Dynamic rating C1 (N, ISO)132000
Dynamic rating C1 (lbf, ISO)29600
Radial rating C90 (N)34100
Radial rating C90 (lbf)7670
Thrust rating Ca90 (N)26800
Thrust rating Ca90 (lbf)6020
Static rating C0 (N)202000
Static rating C0 (lbf)45400
Factor e0.46
Factor Y1.31
Factor K1.27
Geometry factor G1127.6
Geometry factor G262.7
Geometry factor Cg0.1342
Effective load centre a (mm)4.8

Weight

Weight (kg)1.29
Cup weight (kg)0.39

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)1.5
Housing fillet r max (mm)1.5
Shaft shoulder da (mm)109.0
Shaft shoulder db (mm)110.0
Housing shoulder Da (mm)141.0
Housing shoulder Db (mm)136.0
Cage projection Aa (mm)2.4
Cage projection Ab (mm)1.1

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
433,0001023,386
622,00039213,083
816,5001,02434,133
1013,2002,15471,814
158,8008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 132,000 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.302 (dimensions) / p.204 (cup)
Series typeTS

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

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
52400/52618TimkenTapered Roller101.6157.1636.12223 kN2.4
52400/52630XTimkenTapered Roller101.616036.12223 kN2.53
52400/52637TimkenTapered Roller101.6161.9336.12223 kN2.63
52400/52637DTimkenTapered Roller101.6161.9382.55389 kN5.85
52400/52638TimkenTapered Roller101.6161.9336.12223 kN2.8
52400D/52618TimkenTapered Roller101.6157.1679.38389 kN5.29
52400D/52638TimkenTapered Roller101.6161.9379.38389 kN6.28
52401/52618TimkenTapered Roller101.6157.1636.12223 kN2.37

Request a quotation for LM720648/LM720610

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