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KOYO / Double-row / tdo type

KOYO 46380A

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

Technical data available
Bore diameterd
400 mm
Outside diameterD
650 mm
WidthB
250 mm
Dynamic load ratingC
5110 kN
Static load ratingC0
8850 kN
Limiting speednG
310 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 / TDO type
Bore diameterd400 mm
Outside diameterD650 mm
WidthB250 mm
Basic dynamic load ratingC5110 kN
Basic static load ratingC08850 kN
Fatigue load limitPu811 kN
Limiting speednG310 r/min
Mass≈m306 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-020-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Double-row - TDO type
Official Classification 1Tapered roller bearings / Double-row / TDO type
Technical Data21 parameters
Technical Data
ParameterSymbolValue
d400 mm
D650 mm
T250 mm
C200 mm
R(Min.)6 mm
R1(Min.)3 mm
Basic Load Ratings : Cr5110 kN
Basic Load Ratings : C0R8850 kN
Fatigue Load Limit : Cu811 kN
Limiting Speeds(Grease Lub.)310 min-1
Limiting Speeds(Oil Lub.)420 min-1
Constant E0.35
Axial Load Factors : Y21.95
Axial Load Factors : Y32.90
Axial Load Factors : Y01.91
Da(Min.)428 mm
Da(Min.)610 mm
Sa(Min.)25 mm
Ra(Max.)5 mm
Rb(Max.)2.5 mm
Mass(Refer.)306 kg

Technical documents & data sheet

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Record identity
KOYO 46380A
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