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KOYO / Single-row / inch series

KOYO 56425R/662

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

Technical data available
Bore diameterd
107.95 mm
Outside diameterD
168.275 mm
WidthB
36.512 mm
Dynamic load ratingC
245 kN
Static load ratingC0
325 kN
Limiting speednG
2200 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 diameterd107.95 mm
Outside diameterD168.275 mm
WidthB36.512 mm
Basic dynamic load ratingC245 kN
Basic static load ratingC0325 kN
Fatigue load limitPu46.3 kN
Limiting speednG2200 r/min
Mass≈m2.79 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
d107.950 mm
D168.275 mm
T36.512 mm
B36.512 mm
C26.988 mm
R(Min.)3.6 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr245 kN
Basic Load Ratings : C0R325 kN
Fatigue Load Limit : Cu46.3 kN
Limiting Speeds(Grease Lub.)2200 min-1
Limiting Speeds(Oil Lub.)2900 min-1
Load Center Spread : A38.6 mm
Constant :E0.50
Axial Load Factors : Y11.21
Axial Load Factors : Y00.66
Da123.0 mm
Db117.0 mm
Da150.0 mm
Db160.0 mm
Ra(Max.)3.6 mm
Rb(Max.)3.2 mm
Mass(Refer.)2.79 kg

Technical documents & data sheet

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Record identity
KOYO 56425R/662
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