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KOYO / Double-row / tdi type

KOYO 45344

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
120 mm
Dynamic load ratingC
1400 kN
Static load ratingC0
2060 kN
Limiting speednG
700 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 / TDI type
Bore diameterd220 mm
Outside diameterD370 mm
WidthB120 mm
Basic dynamic load ratingC1400 kN
Basic static load ratingC02060 kN
Fatigue load limitPu226 kN
Limiting speednG700 r/min
Mass≈m50.8 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-020-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Double-row - TDI type
Official Classification 1Tapered roller bearings / Double-row / TDI type
Technical Data22 parameters
Technical Data
ParameterSymbolValue
d220 mm
D370 mm
B120 mm
T120 mm
R(Min.)4 mm
R1(Min.)5 mm
Basic Load Ratings : Cr1400 kN
Basic Load Ratings : C0R2060 kN
Fatigue Load Limit : Cu226 kN
Limiting Speeds(Grease Lub.)700 min-1
Limiting Speeds(Oil Lub.)930 min-1
Constant E0.35
Axial Load Factors : Y21.95
Axial Load Factors : Y32.90
Axial Load Factors : Y01.91
Da(Max.)263 mm
Da(Max.)352 mm
Da(Min.)324 mm
Sa(Min.)5 mm
Ra(Max.)3 mm
Rb(Max.)4 mm
Mass(Refer.)50.8 kg

Technical documents & data sheet

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Record identity
KOYO 45344
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