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KOYO / Single-row / inch series

KOYO 6379/20

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

Technical data available
Bore diameterd
65.088 mm
Outside diameterD
135.755 mm
WidthB
56.007 mm
Dynamic load ratingC
333 kN
Static load ratingC0
357 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 / constructionSingle-row / Inch series
Bore diameterd65.088 mm
Outside diameterD135.755 mm
WidthB56.007 mm
Basic dynamic load ratingC333 kN
Basic static load ratingC0357 kN
Fatigue load limitPu49.3 kN
Limiting speednG3000 r/min
Mass≈m3.71 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-010-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Single-row - Inch series
Official Classification 1Tapered roller bearings / Single-row / Inch series
Technical Data23 parameters
Technical Data
ParameterSymbolValue
d65.088 mm
D135.755 mm
T53.975 mm
B56.007 mm
C44.450 mm
R(Min.)3.6 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr333 kN
Basic Load Ratings : C0R357 kN
Fatigue Load Limit : Cu49.3 kN
Limiting Speeds(Grease Lub.)3000 min-1
Limiting Speeds(Oil Lub.)4000 min-1
Load Center Spread : A34.8 mm
Constant :E0.32
Axial Load Factors : Y11.85
Axial Load Factors : Y01.02
Da84.0 mm
Db77.5 mm
Da117.0 mm
Db126.0 mm
Ra(Max.)3.6 mm
Rb(Max.)3.2 mm
Mass(Refer.)3.71 kg

Technical documents & data sheet

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Record identity
KOYO 6379/20
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