SIFT BEARING STORE CATALOG

25583/25524TimkenTapered Roller

25583/25524 is a Timken tapered roller bearing, bore 44.45 mm, O.D. 82.93 mm, width 35.88 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d44.45mm
Outside dia. D82.93mm
Width B35.88mm
Dynamic Cr90.5kN
Static C0r111kN
Weight0.68kg
Cr / C0r0.82
Mean dia. dm63.7mm

Original catalogue drawing - Timken TRB Catalog, page 170

25583/25524 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. D82.93 mmBore d44.45 mmWidth B35.88 mmCup width C19.05 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 diameter82.9313.265
BInner-ring / bearing width35.8781.4125
TOverall assembly width34.291.35
CCup / outer-ring width19.050.75
rChamfer (min)2.30.0906

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)82.931
Outside dia. D (in)3.2650
Width B (mm)35.878
Overall width T (mm)34.290
Overall width T (in)1.3500
Cup width C (mm)19.050

Load ratings & speeds

Basic dynamic load rating Cr (lbs)20300
Basic static load rating Cor (lbs)24900
Basic dynamic load rating Cr (N)90500
Basic static load rating C0r (N)111000
Dynamic rating C1 (N, ISO)90500
Dynamic rating C1 (lbf, ISO)20300
Radial rating C90 (N)23500
Radial rating C90 (lbf)5270
Thrust rating Ca90 (N)13500
Thrust rating Ca90 (lbf)3020
Static rating C0 (N)111000
Static rating C0 (lbf)24900
Factor e0.33
Factor Y1.79
Factor K1.74
Geometry factor G135.2
Geometry factor G214.3
Geometry factor Cg0.0801
Effective load centre a (mm)-16.8

Weight

Weight (kg)0.68

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)0.0
Housing fillet r max (mm)2.3
Shaft shoulder da (mm)50.0
Shaft shoulder db (mm)65.0
Housing shoulder Da (mm)77.0
Housing shoulder Db (mm)73.0
Cage projection Aa (mm)11.4
Cage projection Ab (mm)0.7

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
422,6251023,386
615,08339213,083
811,3121,02434,133
109,0502,15471,814
156,0338,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 90,500 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.170 (dimensions)
Series typeTS

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

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
25583/25520TimkenTapered Roller44.4582.9335.8890.5 kN0.68

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
25583/25519TimkenTapered Roller44.4582.5535.8890.5 kN0.67
25583/25520TimkenTapered Roller44.4582.9335.8890.5 kN0.68

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
25580/25518TimkenTapered Roller44.4581.9725.4-0.53
25580/25519TimkenTapered Roller44.4582.5525.490.5 kN0.55

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