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KOYO / Double-row / tdo type

KOYO 46348A

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

Technical data available
Bore diameterd
240 mm
Outside diameterD
400 mm
WidthB
160 mm
Dynamic load ratingC
1940 kN
Static load ratingC0
3060 kN
Limiting speednG
630 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 diameterd240 mm
Outside diameterD400 mm
WidthB160 mm
Basic dynamic load ratingC1940 kN
Basic static load ratingC03060 kN
Fatigue load limitPu325 kN
Limiting speednG630 r/min
Mass≈m76.2 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
d240 mm
D400 mm
T160 mm
C128 mm
R(Min.)5 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr1940 kN
Basic Load Ratings : C0R3060 kN
Fatigue Load Limit : Cu325 kN
Limiting Speeds(Grease Lub.)630 min-1
Limiting Speeds(Oil Lub.)850 min-1
Constant E0.35
Axial Load Factors : Y21.95
Axial Load Factors : Y32.90
Axial Load Factors : Y01.91
Da(Min.)262 mm
Da(Min.)373 mm
Sa(Min.)16 mm
Ra(Max.)4 mm
Rb(Max.)1.5 mm
Mass(Refer.)76.2 kg

Technical documents & data sheet

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Record identity
KOYO 46348A
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