SIFT BEARING STORE CATALOG

L521945/L521910TimkenTapered Roller

L521945/L521910 is a Timken tapered roller bearing, bore 101.6 mm, O.D. 146.05 mm, width 21.43 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d101.6mm
Outside dia. D146.05mm
Width B21.43mm
Dynamic Cr96kN
Static C0r175kN
Weight1.15kg
Cr / C0r0.55
Mean dia. dm123.8mm

Original catalogue drawing - Timken TRB Catalog, page 302

L521945/L521910 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 B21.43 mmCup width C16.67 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 width21.4330.8438
TOverall assembly width21.4330.8438
CCup / outer-ring width16.670.6563
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)21.433
Overall width T (mm)21.433
Overall width T (in)0.8438
Cup width C (mm)16.670

Load ratings & speeds

Basic dynamic load rating Cr (lbs)21600
Basic static load rating Cor (lbs)39400
Basic dynamic load rating Cr (N)96000
Basic static load rating C0r (N)175000
Dynamic rating C1 (N, ISO)96000
Dynamic rating C1 (lbf, ISO)21600
Radial rating C90 (N)24900
Radial rating C90 (lbf)5600
Thrust rating Ca90 (N)16700
Thrust rating Ca90 (lbf)3760
Static rating C0 (N)175000
Static rating C0 (lbf)39400
Factor e0.39
Factor Y1.53
Factor K1.49
Geometry factor G1152.1
Geometry factor G2107.9
Geometry factor Cg0.1346
Effective load centre a (mm)4.8

Weight

Weight (kg)1.15
Cone weight (kg)0.83
Cup weight (kg)0.33
Total weight (kg)1.16

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)112.0
Housing shoulder Da (mm)141.0
Housing shoulder Db (mm)136.0
Cage projection Aa (mm)0.7
Cage projection Ab (mm)1.6

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
424,0001023,386
616,00039213,083
812,0001,02434,133
109,6002,15471,814
156,4008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 96,000 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.190 (cone) / p.190 (cup)
Series typeTS

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
L521945/L521910DTimkenTapered Roller101.6146.0549.21167 kN2.51
L521945/L521914TimkenTapered Roller101.6152.421.4396 kN1.35

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

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