SIFT BEARING STORE CATALOG

495-S/493DTimkenTapered Roller

495-S/493D is a Timken tapered roller bearing, bore 71.44 mm, O.D. 136.53 mm, height 69.85 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d71.44mm
Outside dia. D136.53mm
Overall width T69.85mm
Dynamic Cr269kN
Weight4.41kg
Mean dia. dm104mm

Original catalogue drawing - Timken TRB Catalog, page 540

495-S/493D 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. D136.53 mmBore d71.44 mmOverall width T69.85 mmCup width C53.98 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 diameter71.4372.8125
DOutside diameter136.5255.375
TOverall assembly width69.852.75
CCup / outer-ring width53.9752.125
rChamfer (min)0.80.0315

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)71.437
Bore d (in)2.8125
Outside dia. D (mm)136.525
Outside dia. D (in)5.3750
Overall width T (mm)69.850
Overall width T (in)2.7500
Cup width C (mm)53.975
Cup width C (in)2.1250

Load ratings & speeds

Basic dynamic load rating Cr (lbs)60500
Basic dynamic load rating Cr (N)269000
Dynamic rating C1 (N, ISO)269000
Dynamic rating C1 (lbf, ISO)60500
Radial rating C90 (N)40000
Radial rating C90 (lbf)9000
Thrust rating Ca90 (N)30500
Thrust rating Ca90 (lbf)6850
Factor e0.44
Factor Y11.52
Factor Y22.26
Factor K1.31
Geometry factor G1104.6
Geometry factor G229.3
Geometry factor Cg0.1252

Weight

Weight (kg)4.41

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)0.8
Shaft shoulder db (mm)88.0
Housing shoulder Da (mm)130.0

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
467,2501023,386
644,83339213,083
833,6251,02434,133
1026,9002,15471,814
1517,9338,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 269,000 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.540 (dimensions)
Series typeTDO

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
495-S/492ATimkenTapered Roller71.44133.3529.77-1.81
495-S/493TimkenTapered Roller71.44136.5329.77154 kN1.93
495/492ATimkenTapered Roller82.55133.3529.77154 kN1.49
495/493TimkenTapered Roller82.55136.5329.77154 kN1.61
495/493DTimkenTapered Roller82.55136.5369.85269 kN3.63

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
33281/33461TimkenTapered Roller71.44117.4730.16138 kN1.23
33281/33462TimkenTapered Roller71.44117.4730.16138 kN1.22
33281/33462DTimkenTapered Roller71.44117.4766.67241 kN2.73
33281/33472TimkenTapered Roller71.4412030.16138 kN1.31
47490/47420TimkenTapered Roller71.4412032.55179 kN1.41
47490/47420DTimkenTapered Roller71.4412071.44311 kN3.01
47490/47423TimkenTapered Roller71.44120.6532.55179 kN1.45
47675/47620TimkenTapered Roller71.44133.3533.34214 kN2.06

Request a quotation for 495-S/493D

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