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KOYO / Single-row / inch series

KOYO L521949R/10

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

Technical data available
Bore diameterd
107.95 mm
Outside diameterD
146.05 mm
WidthB
21.432 mm
Dynamic load ratingC
108 kN
Static load ratingC0
167 kN
Limiting speednG
2300 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 diameterD146.05 mm
WidthB21.432 mm
Basic dynamic load ratingC108 kN
Basic static load ratingC0167 kN
Fatigue load limitPu23.5 kN
Limiting speednG2300 r/min
Mass≈m0.99 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
D146.050 mm
T21.432 mm
B21.432 mm
C16.670 mm
R(Min.)1.6 mm
R1(Min.)1.6 mm
Basic Load Ratings : Cr108 kN
Basic Load Ratings : C0R167 kN
Fatigue Load Limit : Cu23.5 kN
Limiting Speeds(Grease Lub.)2300 min-1
Limiting Speeds(Oil Lub.)3100 min-1
Load Center Spread : A26.2 mm
Constant :E0.39
Axial Load Factors : Y11.53
Axial Load Factors : Y00.84
Da116.0 mm
Db114.0 mm
Da136.0 mm
Db141.0 mm
Ra(Max.)1.6 mm
Rb(Max.)1.6 mm
Mass(Refer.)0.99 kg

Technical documents & data sheet

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Record identity
KOYO L521949R/10
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