SIFT BEARING STORE CATALOG

28580/28523TimkenTapered Roller

28580/28523 is a Timken tapered roller bearing, bore 50.8 mm, O.D. 92.08 mm, height 55.56 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d50.8mm
Outside dia. D92.08mm
Overall width T55.56mm
Dynamic Cr172kN
Weight1.56kg
Mean dia. dm71.4mm

Original catalogue drawing - Timken TRB Catalog, page 674

28580/28523 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. D92.08 mmBore d50.8 mmOverall width T55.56 mmCup width C46.03 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 diameter50.82
DOutside diameter92.0753.625
TOverall assembly width55.562.1874
CCup / outer-ring width46.0351.8124

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)50.800
Bore d (in)2.0000
Outside dia. D (mm)92.075
Outside dia. D (in)3.6250
Overall width T (mm)55.560
Overall width T (in)2.1874
Cup width C (mm)46.035
Cup width C (in)1.8124

Load ratings & speeds

Basic dynamic load rating Cr (lbs)38700
Basic dynamic load rating Cr (N)172000
Dynamic rating C1 (N, ISO)172000
Dynamic rating C1 (lbf, ISO)38700
Radial rating C90 (N)25700
Radial rating C90 (lbf)5770
Thrust rating Ca90 (N)16600
Thrust rating Ca90 (lbf)3720
Factor e0.38
Factor Y11.79
Factor Y22.66
Factor K1.55

Weight

Weight (kg)1.56

Mounting dimensions (fillets / shoulders)

Shaft shoulder db (mm)63.0
Housing shoulder Da (mm)87.0

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
443,0001023,386
628,66739213,083
821,5001,02434,133
1017,2002,15471,814
1511,4678,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 172,000 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.674 (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
28580/28520TimkenTapered Roller50.889.9825.498.9 kN0.66
28580/28521TimkenTapered Roller50.892.0825.498.9 kN0.7

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
18200/18335ETimkenTapered Roller50.88518.26-0.42
18200/18337TimkenTapered Roller50.885.7218.2661.1 kN0.39
18790/18720TimkenTapered Roller50.88517.4654.7 kN0.36
18790/18721TimkenTapered Roller50.883.3117.4654.7 kN0.34
18790/18723TimkenTapered Roller50.888.917.4654.7 kN0.48
18790/18724TimkenTapered Roller50.888.917.4654.7 kN0.42
28678/28621TimkenTapered Roller50.896.8424.61-0.82
33889/33821TimkenTapered Roller50.895.2528.57130 kN0.85

Request a quotation for 28580/28523

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Online enquiry formrichard@bearingsfit.com