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KOYO / Double-row / tdo type

KOYO 46338A

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

Technical data available
Bore diameterd
190 mm
Outside diameterD
320 mm
WidthB
130 mm
Dynamic load ratingC
1230 kN
Static load ratingC0
1860 kN
Limiting speednG
840 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 diameterd190 mm
Outside diameterD320 mm
WidthB130 mm
Basic dynamic load ratingC1230 kN
Basic static load ratingC01860 kN
Fatigue load limitPu212 kN
Limiting speednG840 r/min
Mass≈m39 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
d190 mm
D320 mm
T130 mm
C104 mm
R(Min.)4 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr1230 kN
Basic Load Ratings : C0R1860 kN
Fatigue Load Limit : Cu212 kN
Limiting Speeds(Grease Lub.)840 min-1
Limiting Speeds(Oil Lub.)1100 min-1
Constant E0.35
Axial Load Factors : Y21.95
Axial Load Factors : Y32.90
Axial Load Factors : Y01.91
Da(Min.)208 mm
Da(Min.)298 mm
Sa(Min.)13 mm
Ra(Max.)3 mm
Rb(Max.)1.5 mm
Mass(Refer.)39.0 kg

Technical documents & data sheet

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Record identity
KOYO 46338A
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