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KOYO / Double-row / tdo type

KOYO 46276A

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

Technical data available
Bore diameterd
380 mm
Outside diameterD
560 mm
WidthB
171 mm
Dynamic load ratingC
2810 kN
Static load ratingC0
4670 kN
Limiting speednG
380 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 diameterd380 mm
Outside diameterD560 mm
WidthB171 mm
Basic dynamic load ratingC2810 kN
Basic static load ratingC04670 kN
Fatigue load limitPu456 kN
Limiting speednG380 r/min
Mass≈m129 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
d380 mm
D560 mm
T171 mm
C135 mm
R(Min.)6 mm
R1(Min.)2 mm
Basic Load Ratings : Cr2810 kN
Basic Load Ratings : C0R4670 kN
Fatigue Load Limit : Cu456 kN
Limiting Speeds(Grease Lub.)380 min-1
Limiting Speeds(Oil Lub.)500 min-1
Constant E0.39
Axial Load Factors : Y21.74
Axial Load Factors : Y32.59
Axial Load Factors : Y01.70
Da(Min.)408 mm
Da(Min.)531 mm
Sa(Min.)18 mm
Ra(Max.)5 mm
Rb(Max.)2 mm
Mass(Refer.)129 kg

Technical documents & data sheet

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Record identity
KOYO 46276A
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