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KOYO / Double-row / tdo type

KOYO 46T30312DJR/51

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

Technical data available
Bore diameterd
60 mm
Outside diameterD
130 mm
WidthB
74 mm
Dynamic load ratingC
327 kN
Static load ratingC0
359 kN
Limiting speednG
2100 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 diameterd60 mm
Outside diameterD130 mm
WidthB74 mm
Basic dynamic load ratingC327 kN
Basic static load ratingC0359 kN
Fatigue load limitPu54.2 kN
Limiting speednG2100 r/min
Mass≈m4.45 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
d60 mm
D130 mm
T74 mm
C51 mm
R(Min.)2.5 mm
R1(Min.)1 mm
Basic Load Ratings : Cr327 kN
Basic Load Ratings : C0R359 kN
Fatigue Load Limit : Cu54.2 kN
Limiting Speeds(Grease Lub.)2100 min-1
Limiting Speeds(Oil Lub.)2900 min-1
Constant E0.83
Axial Load Factors : Y20.82
Axial Load Factors : Y31.22
Axial Load Factors : Y00.8
Da(Min.)74 mm
Da(Min.)124 mm
Sa(Min.)11.5 mm
Ra(Max.)2.5 mm
Rb(Max.)1 mm
Mass(Refer.)4.45 kg

Technical documents & data sheet

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Record identity
KOYO 46T30312DJR/51
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