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KOYO / Double-row / tdi type

KOYO 45260

Tapered roller bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
300 mm
Outside diameterD
460 mm
WidthB
118 mm
Dynamic load ratingC
1870 kN
Static load ratingC0
3150 kN
Limiting speednG
500 r/min

Use this page as a technical reference. Verify the current manufacturer specification and the complete application requirements before selection.

Technical data

Product specifications

Metric and imperial values are paired where the manufacturer provides both. Expand a section to review its parameters.

Core specifications9 parameters
Core specifications
ParameterSymbolValue
Variant / constructionDouble-row / TDI type
Bore diameterd300 mm
Outside diameterD460 mm
WidthB118 mm
Basic dynamic load ratingC1870 kN
Basic static load ratingC03150 kN
Fatigue load limitPu325 kN
Limiting speednG500 r/min
Mass≈m78.5 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-020-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Double-row - TDI type
Official Classification 1Tapered roller bearings / Double-row / TDI type
Technical Data22 parameters
Technical Data
ParameterSymbolValue
d300 mm
D460 mm
B118 mm
T118 mm
R(Min.)4 mm
R1(Min.)5 mm
Basic Load Ratings : Cr1870 kN
Basic Load Ratings : C0R3150 kN
Fatigue Load Limit : Cu325 kN
Limiting Speeds(Grease Lub.)500 min-1
Limiting Speeds(Oil Lub.)670 min-1
Constant E0.25
Axial Load Factors : Y22.74
Axial Load Factors : Y34.08
Axial Load Factors : Y02.68
Da(Max.)350 mm
Da(Max.)442 mm
Da(Min.)418 mm
Sa(Min.)6 mm
Ra(Max.)3 mm
Rb(Max.)4 mm
Mass(Refer.)78.5 kg

Technical documents & data sheet

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Record identity
KOYO 45260
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