SIFT BEARING STORE CATALOG

L507945/L507910TimkenTapered Roller

L507945/L507910 is a Timken tapered roller bearing, bore 53.98 mm, O.D. 87.31 mm, width 18.26 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d53.98mm
Outside dia. D87.31mm
Width B18.26mm
Dynamic Cr62.7kN
Static C0r95.6kN
Weight0.43kg
Cr / C0r0.66
Mean dia. dm70.6mm

Original catalogue drawing - Timken TRB Catalog, page 210

L507945/L507910 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. D87.31 mmBore d53.98 mmWidth B18.26 mmCup width C14.29 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 diameter53.9752.125
DOutside diameter87.3123.4375
BInner-ring / bearing width18.2580.7188
TOverall assembly width18.2580.7188
CCup / outer-ring width14.2880.5625
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)53.975
Bore d (in)2.1250
Outside dia. D (mm)87.312
Outside dia. D (in)3.4375
Width B (mm)18.258
Overall width T (mm)18.258
Overall width T (in)0.7188
Cup width C (mm)14.288

Load ratings & speeds

Basic dynamic load rating Cr (lbs)14100
Basic static load rating Cor (lbs)21500
Basic dynamic load rating Cr (N)62700
Basic static load rating C0r (N)95600
Dynamic rating C1 (N, ISO)62700
Dynamic rating C1 (lbf, ISO)14100
Radial rating C90 (N)16300
Radial rating C90 (lbf)3650
Thrust rating Ca90 (N)10800
Thrust rating Ca90 (lbf)2430
Static rating C0 (N)95600
Static rating C0 (lbf)21500
Factor e0.39
Factor Y1.54
Factor K1.50
Geometry factor G146.1
Geometry factor G238.5
Geometry factor Cg0.0914
Effective load centre a (mm)-0.8

Weight

Weight (kg)0.43
Cone weight (kg)0.3
Cup weight (kg)0.13
Total weight (kg)0.43

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)1.5
Housing fillet r max (mm)1.5
Shaft shoulder da (mm)60.0
Shaft shoulder db (mm)62.0
Housing shoulder Da (mm)83.0
Housing shoulder Db (mm)79.0
Cage projection Aa (mm)0.3
Cage projection Ab (mm)2.0

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
415,6751023,386
610,45039213,083
87,8381,02434,133
106,2702,15471,814
154,1808,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 62,700 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.210 (dimensions) / p.188 (cone) / p.188 (cup)
Series typeTS

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

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
33895/33821TimkenTapered Roller53.9895.2528.57130 kN0.8
33895/33821DTimkenTapered Roller53.9895.2563.5226 kN1.75
33895/33822TimkenTapered Roller53.9895.2528.57130 kN0.81
389A/382TimkenTapered Roller53.9898.4221.95108 kN0.69
389A/382ATimkenTapered Roller53.9896.8421.95108 kN0.64
389A/384DTimkenTapered Roller53.9810052.39188 kN1.6
389A/384EDTimkenTapered Roller53.9810049.2188 kN1.52
39578/39520TimkenTapered Roller53.98112.7130.16167 kN1.44

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