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KOYO / Double-row / tdo type

KOYO 46238A

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

Technical data available
Bore diameterd
190 mm
Outside diameterD
290 mm
WidthB
94 mm
Dynamic load ratingC
793 kN
Static load ratingC0
1170 kN
Limiting speednG
900 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 diameterD290 mm
WidthB94 mm
Basic dynamic load ratingC793 kN
Basic static load ratingC01170 kN
Fatigue load limitPu140 kN
Limiting speednG900 r/min
Mass≈m20 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
D290 mm
T94 mm
C75 mm
R(Min.)3 mm
R1(Min.)1 mm
Basic Load Ratings : Cr793 kN
Basic Load Ratings : C0R1170 kN
Fatigue Load Limit : Cu140 kN
Limiting Speeds(Grease Lub.)900 min-1
Limiting Speeds(Oil Lub.)1200 min-1
Constant E0.33
Axial Load Factors : Y22.03
Axial Load Factors : Y33.02
Axial Load Factors : Y01.98
Da(Min.)204 mm
Da(Min.)274 mm
Sa(Min.)9.5 mm
Ra(Max.)2.5 mm
Rb(Max.)1 mm
Mass(Refer.)20.0 kg

Technical documents & data sheet

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Record identity
KOYO 46238A
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