SIFT BEARING STORE CATALOG

18590/18520TimkenTapered Roller

18590/18520 is a Timken tapered roller bearing, bore 41.27 mm, O.D. 73.03 mm, width 17.46 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
Request a quoteEmail usSearch the catalog
Bore d41.27mm
Outside dia. D73.03mm
Width B17.46mm
Dynamic Cr50.8kN
Static C0r58.1kN
Weight0.28kg
Cr / C0r0.87
Mean dia. dm57.2mm

Original catalogue drawing - Timken TRB Catalog, page 158

18590/18520 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. D73.03 mmBore d41.27 mmWidth B17.46 mmCup width C12.7 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 diameter41.2751.625
DOutside diameter73.0252.875
BInner-ring / bearing width17.4620.6875
TOverall assembly width16.6670.6562
CCup / outer-ring width12.70.5
rChamfer (min)1.50.0591

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)41.275
Bore d (in)1.6250
Outside dia. D (mm)73.025
Outside dia. D (in)2.8750
Width B (mm)17.462
Overall width T (mm)16.667
Overall width T (in)0.6562
Cup width C (mm)12.700

Load ratings & speeds

Basic dynamic load rating Cr (lbs)11400
Basic static load rating Cor (lbs)13100
Basic dynamic load rating Cr (N)50800
Basic static load rating C0r (N)58100
Dynamic rating C1 (N, ISO)50800
Dynamic rating C1 (lbf, ISO)11400
Radial rating C90 (N)13200
Radial rating C90 (lbf)2960
Thrust rating Ca90 (N)7890
Thrust rating Ca90 (lbf)1770
Static rating C0 (N)58100
Static rating C0 (lbf)13100
Factor e0.35
Factor Y1.71
Factor K1.67
Geometry factor G121.0
Geometry factor G216.8
Geometry factor Cg0.0681
Effective load centre a (mm)-2.8

Weight

Weight (kg)0.28
Cone weight (kg)0.19
Cup weight (kg)0.08
Total weight (kg)0.27

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)1.5
Shaft shoulder da (mm)46.0
Shaft shoulder db (mm)53.0
Housing shoulder Da (mm)69.0
Housing shoulder Db (mm)66.0
Cage projection Aa (mm)0.4
Cage projection Ab (mm)1.3

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
412,7001023,386
68,46739213,083
86,3501,02434,133
105,0802,15471,814
153,3878,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 50,800 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.158 (dimensions) / p.75 (cone) / p.75 (cup)
Series typeTS

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
18590/18520NSKTapered Roller41.2773.0317.4610,000 lbs0.29

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
11162/11300TimkenTapered Roller41.2776.217.3848.1 kN0.34
11162/11315TimkenTapered Roller41.278017.3848.1 kN0.39
22778/22720TimkenTapered Roller41.2782.5526.99-0.65
22778/22721TimkenTapered Roller41.2782.5526.9992.9 kN0.64
24780/24720TimkenTapered Roller41.2776.223.0275.5 kN0.43
24780/24721TimkenTapered Roller41.2776.223.0275.5 kN0.47
24780/24722TimkenTapered Roller41.2776.223.0275.5 kN0.42
24781/24720TimkenTapered Roller41.2776.223.0275.5 kN0.43

Request a quotation for 18590/18520

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.