SIFT BEARING STORE CATALOG

31593/31520TimkenTapered Roller

31593/31520 is a Timken tapered roller bearing, bore 34.92 mm, O.D. 76.2 mm, width 28.57 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d34.92mm
Outside dia. D76.2mm
Width B28.57mm
Dynamic Cr94.7kN
Static C0r107kN
Weight0.61kg
Cr / C0r0.89
Mean dia. dm55.6mm

Original catalogue drawing - Timken TRB Catalog, page 132

31593/31520 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. D76.2 mmBore d34.92 mmWidth B28.57 mmCup width C23.81 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 diameter34.9251.375
DOutside diameter76.23
BInner-ring / bearing width28.5751.125
TOverall assembly width29.371.1563
CCup / outer-ring width23.8120.9375
rChamfer (min)3.30.1299

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)34.925
Bore d (in)1.3750
Outside dia. D (mm)76.200
Outside dia. D (in)3.0000
Width B (mm)28.575
Overall width T (mm)29.370
Overall width T (in)1.1563
Cup width C (mm)23.812

Load ratings & speeds

Basic dynamic load rating Cr (lbs)21300
Basic static load rating Cor (lbs)24100
Basic dynamic load rating Cr (N)94700
Basic static load rating C0r (N)107000
Dynamic rating C1 (N, ISO)94700
Dynamic rating C1 (lbf, ISO)21300
Radial rating C90 (N)24600
Radial rating C90 (lbf)5520
Thrust rating Ca90 (N)16900
Thrust rating Ca90 (lbf)3800
Static rating C0 (N)107000
Static rating C0 (lbf)24100
Factor e0.40
Factor Y1.49
Factor K1.45
Geometry factor G126.3
Geometry factor G29.1
Geometry factor Cg0.0773
Effective load centre a (mm)-7.6

Weight

Weight (kg)0.61
Cone weight (kg)0.39
Cup weight (kg)0.23
Total weight (kg)0.62

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)3.5
Housing fillet r max (mm)3.3
Shaft shoulder da (mm)43.5
Shaft shoulder db (mm)50.0
Housing shoulder Da (mm)72.0
Housing shoulder Db (mm)64.0
Cage projection Aa (mm)1.6
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
423,6751023,386
615,78339213,083
811,8381,02434,133
109,4702,15471,814
156,3138,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 94,700 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.132 (dimensions) / p.84 (cone) / p.84 (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
K31594-31520FAGTapered Roller34.9276.228.5777 kN0.636
KHM89446-HM89410FAGTapered Roller34.9276.228.5779 kN0.664

Same dimensions, same brand

DesignationBrandTypedDB/TDyn. ratingkg
31593/31521TimkenTapered Roller34.9276.228.5794.7 kN0.62
31594/31520TimkenTapered Roller34.9276.228.5794.7 kN0.62
HM89446/HM89410TimkenTapered Roller34.9276.228.57110 kN0.64
HM89446A/HM89410TimkenTapered Roller34.9276.228.57110 kN0.64

Series variants (different suffix)

DesignationBrandTypedDB/TDyn. ratingkg
31593/31521TimkenTapered Roller34.9276.228.5794.7 kN0.62

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
02877/02820TimkenTapered Roller34.9273.0322.2365.7 kN0.41
02877/02823DTimkenTapered Roller34.9276.247.62114 kN1.01
02877/02831TimkenTapered Roller34.9280.9622.2365.7 kN0.55
02878/02820TimkenTapered Roller34.9273.0322.2365.7 kN0.41
02878/02823DTimkenTapered Roller34.9276.247.62114 kN1.01
02878/02830TimkenTapered Roller34.9273.0322.2365.7 kN0.42
14136A/14272TimkenTapered Roller34.9269.0126.72-0.33
14137A/14274TimkenTapered Roller34.9269.0119.5854.6 kN0.32

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