SIFT BEARING STORE CATALOG

639/633XTimkenTapered Roller

639/633X is a Timken tapered roller bearing, bore 63.5 mm, O.D. 130 mm, width 41.27 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d63.5mm
Outside dia. D130mm
Width B41.27mm
Dynamic Cr276kN
Static C0r298kN
Weight2.48kg
Cr / C0r0.93
Mean dia. dm96.8mm

Original catalogue drawing - Timken TRB Catalog, page 240

639/633X 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. D130 mmBore d63.5 mmWidth B41.27 mmCup width C31.75 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 diameter63.52.5
DOutside diameter1305.1181
BInner-ring / bearing width41.2751.625
TOverall assembly width41.2751.625
CCup / outer-ring width31.751.25
rChamfer (min)30.1181

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)63.500
Bore d (in)2.5000
Outside dia. D (mm)130.000
Outside dia. D (in)5.1181
Width B (mm)41.275
Overall width T (mm)41.275
Overall width T (in)1.6250
Cup width C (mm)31.750

Load ratings & speeds

Basic dynamic load rating Cr (lbs)62100
Basic static load rating Cor (lbs)67000
Basic dynamic load rating Cr (N)276000
Basic static load rating C0r (N)298000
Dynamic rating C1 (N, ISO)276000
Dynamic rating C1 (lbf, ISO)62100
Radial rating C90 (N)71600
Radial rating C90 (lbf)16100
Thrust rating Ca90 (N)44400
Thrust rating Ca90 (lbf)9980
Static rating C0 (N)298000
Static rating C0 (lbf)67000
Factor e0.36
Factor Y1.66
Factor K1.61
Geometry factor G1106.4
Geometry factor G221.0
Geometry factor Cg0.0814
Effective load centre a (mm)-11.2

Weight

Weight (kg)2.48

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)3.0
Shaft shoulder da (mm)74.0
Shaft shoulder db (mm)81.0
Housing shoulder Da (mm)123.0
Housing shoulder Db (mm)117.0
Cage projection Aa (mm)4.1
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
469,0001023,386
646,00039213,083
834,5001,02434,133
1027,6002,15471,814
1518,4008,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 276,000 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.240 (dimensions)
Series typeTS

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

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
639/632TimkenTapered Roller63.5136.5341.27276 kN2.83
639/632DTimkenTapered Roller63.5136.5395.25481 kN6.28

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
29585/29520TimkenTapered Roller63.5107.9525.4131 kN0.91
29585/29522TimkenTapered Roller63.5107.9525.4131 kN0.92
29586/29520TimkenTapered Roller63.5107.9525.4131 kN0.92
29586/29521TimkenTapered Roller63.511025.4131 kN0.99
29586/29522TimkenTapered Roller63.5107.9525.4131 kN0.93
29586/29526DTimkenTapered Roller63.5112.7155.56227 kN2.19
29670/29620TimkenTapered Roller63.5112.7125.4-1.09
33251/33461TimkenTapered Roller63.5117.4730.16-1.43

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