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KOYO / Double-row / tdo type

KOYO 46344A

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

Technical data available
Bore diameterd
220 mm
Outside diameterD
370 mm
WidthB
150 mm
Dynamic load ratingC
1600 kN
Static load ratingC0
2470 kN
Limiting speednG
710 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 diameterd220 mm
Outside diameterD370 mm
WidthB150 mm
Basic dynamic load ratingC1600 kN
Basic static load ratingC02470 kN
Fatigue load limitPu272 kN
Limiting speednG710 r/min
Mass≈m60.1 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
d220 mm
D370 mm
T150 mm
C120 mm
R(Min.)5 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr1600 kN
Basic Load Ratings : C0R2470 kN
Fatigue Load Limit : Cu272 kN
Limiting Speeds(Grease Lub.)710 min-1
Limiting Speeds(Oil Lub.)940 min-1
Constant E0.35
Axial Load Factors : Y21.95
Axial Load Factors : Y32.90
Axial Load Factors : Y01.91
Da(Min.)242 mm
Da(Min.)343 mm
Sa(Min.)15 mm
Ra(Max.)4 mm
Rb(Max.)1.5 mm
Mass(Refer.)60.1 kg

Technical documents & data sheet

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Record identity
KOYO 46344A
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