SIFT BEARING STORE CATALOG

25580/25518TimkenTapered Roller

25580/25518 is a Timken tapered roller bearing, bore 44.45 mm, O.D. 81.97 mm, width 25.4 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d44.45mm
Outside dia. D81.97mm
Width B25.4mm
Weight0.53kg
Mean dia. dm63.2mm

Original catalogue drawing - Timken - Single Row

25580/25518 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. D81.97 mmBore d44.45 mmWidth B25.4 mmCup width C19.11 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 diameter44.451.75
DOutside diameter81.9733.2273
BInner-ring / bearing width25.41
TOverall assembly width23.8760.94
CCup / outer-ring width19.1140.7525
rChamfer (min)10.0394

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)44.450
Bore d (in)1.7500
Outside dia. D (mm)81.973
Outside dia. D (in)3.2273
Width B (mm)25.400
Width B (in)1.0000
Overall width T (mm)23.876
Overall width T (in).9400
Cup width C (mm)19.114
Cup width C (in).7525

Weight

Cone weight (kg)0.35
Cup weight (kg)0.18
Total weight (kg)0.53

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)1.0

Source & traceability

BrandTimken
Source catalogueTimken Bearing Dimension Catalog
Catalogue pagep.307 (dimensions) / p.79 (cone) / p.79 (cup)

Dimensions and component weights only - this catalogue publishes no load ratings or speeds.

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
25580/25519TimkenTapered Roller44.4582.5525.490.5 kN0.55
25580/25520TimkenTapered Roller44.4582.9325.490.5 kN0.56
25580/25520DTimkenTapered Roller44.4582.9357.15158 kN1.31
25580/25522TimkenTapered Roller44.4583.0625.490.5 kN0.56
25580/25523TimkenTapered Roller44.4582.9325.490.5 kN0.6
25580/25524TimkenTapered Roller44.4582.9325.490.5 kN0.56
25580/25526TimkenTapered Roller44.458525.490.5 kN0.6

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
12175/12303TimkenTapered Roller44.4576.9917.1449.5 kN0.31
13175/13318TimkenTapered Roller44.4580.9617.4650.8 kN0.39
13176D/13318TimkenTapered Roller44.4580.9631.7588.5 kN0.74
17884/17830TimkenTapered Roller44.4579.3833.55-0.52
18685/18620TimkenTapered Roller44.4579.3817.4652 kN0.34
18685/18620DTimkenTapered Roller44.4579.3841.2790.6 kN0.78
25581/25520TimkenTapered Roller44.4582.9325.490.5 kN0.56
25581/25520DTimkenTapered Roller44.4582.9357.15158 kN1.31

Request a quotation for 25580/25518

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