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KOYO / Single-row / inch series

KOYO M802048/11

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

Technical data available
Bore diameterd
41.275 mm
Outside diameterD
82.55 mm
WidthB
25.654 mm
Dynamic load ratingC
105 kN
Static load ratingC0
105 kN
Limiting speednG
4900 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 diameterd41.275 mm
Outside diameterD82.55 mm
WidthB25.654 mm
Basic dynamic load ratingC105 kN
Basic static load ratingC0105 kN
Fatigue load limitPu15.4 kN
Limiting speednG4900 r/min
Mass≈m0.63 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
d41.275 mm
D82.550 mm
T26.543 mm
B25.654 mm
C20.193 mm
R(Min.)3.6 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr105 kN
Basic Load Ratings : C0R105 kN
Fatigue Load Limit : Cu15.4 kN
Limiting Speeds(Grease Lub.)4900 min-1
Limiting Speeds(Oil Lub.)6500 min-1
Load Center Spread : A23.3 mm
Constant :E0.55
Axial Load Factors : Y11.10
Axial Load Factors : Y00.60
Da57.0 mm
Db50.6 mm
Da70.0 mm
Db79.0 mm
Ra(Max.)3.6 mm
Rb(Max.)3.2 mm
Mass(Refer.)0.63 kg

Technical documents & data sheet

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Record identity
KOYO M802048/11
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