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KOYO / Single-row / inch series

KOYO 66212R/462

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

Technical data available
Bore diameterd
53.975 mm
Outside diameterD
117.475 mm
WidthB
31.75 mm
Dynamic load ratingC
162 kN
Static load ratingC0
152 kN
Limiting speednG
3500 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 diameterd53.975 mm
Outside diameterD117.475 mm
WidthB31.75 mm
Basic dynamic load ratingC162 kN
Basic static load ratingC0152 kN
Fatigue load limitPu23.2 kN
Limiting speednG3500 r/min
Mass≈m1.582 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
d53.975 mm
D117.475 mm
T33.338 mm
B31.750 mm
C23.812 mm
R(Min.)3.6 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr162 kN
Basic Load Ratings : C0R152 kN
Fatigue Load Limit : Cu23.2 kN
Limiting Speeds(Grease Lub.)3500 min-1
Limiting Speeds(Oil Lub.)4600 min-1
Load Center Spread : A33.2 mm
Constant :E0.63
Axial Load Factors : Y10.96
Axial Load Factors : Y00.53
Da73.0 mm
Db67.0 mm
Da100.0 mm
Db111.0 mm
Ra(Max.)3.6 mm
Rb(Max.)3.2 mm
Mass(Refer.)1.582 kg

Technical documents & data sheet

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Record identity
KOYO 66212R/462
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