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KOYO / Single-row / inch series

KOYO JM720249/10

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

Technical data available
Bore diameterd
100 mm
Outside diameterD
155 mm
WidthB
35 mm
Dynamic load ratingC
256 kN
Static load ratingC0
328 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 diameterd100 mm
Outside diameterD155 mm
WidthB35 mm
Basic dynamic load ratingC256 kN
Basic static load ratingC0328 kN
Fatigue load limitPu47.7 kN
Limiting speednG2300 r/min
Mass≈m2.403 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
d100.000 mm
D155.000 mm
T36.000 mm
B35.000 mm
C28.000 mm
R(Min.)3.0 mm
R1(Min.)2.5 mm
Basic Load Ratings : Cr256 kN
Basic Load Ratings : C0R328 kN
Fatigue Load Limit : Cu47.7 kN
Limiting Speeds(Grease Lub.)2300 min-1
Limiting Speeds(Oil Lub.)3100 min-1
Load Center Spread : A35.6 mm
Constant :E0.47
Axial Load Factors : Y11.27
Axial Load Factors : Y00.70
Da110.0 mm
Db110.0 mm
Da139.0 mm
Db148.0 mm
Ra(Max.)3.0 mm
Rb(Max.)2.5 mm
Mass(Refer.)2.403 kg

Technical documents & data sheet

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Record identity
KOYO JM720249/10
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