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KOYO / Double-row / tdo type

KOYO 46T30310JR/51.5

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

Technical data available
Bore diameterd
50 mm
Outside diameterD
110 mm
WidthB
64 mm
Dynamic load ratingC
295 kN
Static load ratingC0
305 kN
Limiting speednG
3000 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 diameterd50 mm
Outside diameterD110 mm
WidthB64 mm
Basic dynamic load ratingC295 kN
Basic static load ratingC0305 kN
Fatigue load limitPu47.9 kN
Limiting speednG3000 r/min
Mass≈m2.68 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
d50 mm
D110 mm
T64 mm
C51.5 mm
R(Min.)2 mm
R1(Min.)0.6 mm
Basic Load Ratings : Cr295 kN
Basic Load Ratings : C0R305 kN
Fatigue Load Limit : Cu47.9 kN
Limiting Speeds(Grease Lub.)3000 min-1
Limiting Speeds(Oil Lub.)4000 min-1
Constant E0.35
Axial Load Factors : Y21.96
Axial Load Factors : Y32.91
Axial Load Factors : Y01.91
Da(Min.)62 mm
Da(Min.)102 mm
Sa(Min.)6 mm
Ra(Max.)2 mm
Rb(Max.)0.6 mm
Mass(Refer.)2.68 kg

Technical documents & data sheet

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Record identity
KOYO 46T30310JR/51.5
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