SIFT BEARING STORE CATALOG

NP741064/NP034947TimkenTapered Roller

NP741064/NP034947 is a Timken tapered roller bearing, bore 300 mm, O.D. 460 mm, width 160 mm. Dimensions, drawing, interchanges and price.

Cone + cup assembly
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Bore d300mm
Outside dia. D460mm
Width B160mm
Dynamic Cr2920kN
Weight104.21kg
Mean dia. dm380mm

Original catalogue drawing - Timken TRB Catalog, page 626

NP741064/NP034947 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. D460 mmBore d300 mmWidth B160 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 diameter30011.811
DOutside diameter46018.1102
BInner-ring / bearing width1606.2992
TOverall assembly width1606.2992
rChamfer (min)40.1575

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)300.000
Bore d (in)11.8110
Outside dia. D (mm)460.000
Outside dia. D (in)18.1102
Width B (mm)160.000
Width B (in)6.2992
Overall width T (mm)160.000
Overall width T (in)6.2992

Load ratings & speeds

Basic dynamic load rating Cr (lbs)656000
Basic dynamic load rating Cr (N)2920000
Dynamic rating C1 (N, ISO)2920000
Dynamic rating C1 (lbf, ISO)656000
Radial rating C90 (N)435000
Radial rating C90 (lbf)97800
Thrust rating Ca90 (N)249000
Thrust rating Ca90 (lbf)56000
Factor e0.3
Factor Y12.0
Factor Y23.0
Factor K1.74
Geometry factor G12944.6
Geometry factor G2303.9
Geometry factor Cg0.1863

Weight

Weight (kg)104.21

Mounting dimensions (fillets / shoulders)

Shaft fillet R max (mm)4.0
Housing fillet r max (mm)4.0
Shaft shoulder da (mm)340.0
Housing shoulder Db (mm)423.0

Bearing life (ISO 281 basic rating life)

C / PEquivalent load P (N)L10 (106 rev)L10h at 500 rpm
4730,0001023,386
6486,66739213,083
8365,0001,02434,133
10292,0002,15471,814
15194,6678,323277,449

Basic rating life per ISO 281: L10 = (C/P)10/3 with C = 2,920,000 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.626 (dimensions)
Series typeTDI

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

Interchange - same dimensions, other brands

DesignationBrandTypedDB/TDyn. ratingkg
24060-BE-XLFAGSpherical Roller3004601602850 kN101
24060-BE-XL-K30FAGSpherical Roller3004601602850 kN97
24060CAME4NSKSpherical Roller300460160520,000 lbs92.669

Nearby bore sizes

DesignationBrandTypedDB/TDyn. ratingkg
32060XTimkenTapered Roller3004601001730 kN56.32
32260TimkenTapered Roller3005401403090 kN139.93
32960TimkenTapered Roller300420761180 kN31.23
X32960/Y32960TimkenTapered Roller30042076--
EE129119D/129174TimkenTapered Roller299.98439.95134.941560 kN67.14
HH258248/HH258210TimkenTapered Roller299.98495.3141.292870 kN110.43
HH258248/HH258210CDTimkenTapered Roller299.98495.3301.625000 kN229.1
HM256849/HM256810TimkenTapered Roller300.04422.2782.551300 kN35.46

Request a quotation for NP741064/NP034947

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