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KOYO / Single-row / inch series

KOYO HM88542/10

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

Technical data available
Bore diameterd
31.75 mm
Outside diameterD
73.025 mm
WidthB
27.783 mm
Dynamic load ratingC
93 kN
Static load ratingC0
101 kN
Limiting speednG
5600 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 diameterd31.75 mm
Outside diameterD73.025 mm
WidthB27.783 mm
Basic dynamic load ratingC93 kN
Basic static load ratingC0101 kN
Fatigue load limitPu14.2 kN
Limiting speednG5600 r/min
Mass≈m0.615 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
d31.750 mm
D73.025 mm
T29.370 mm
B27.783 mm
C23.020 mm
R(Min.)1.2 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr93.0 kN
Basic Load Ratings : C0R101 kN
Fatigue Load Limit : Cu14.2 kN
Limiting Speeds(Grease Lub.)5600 min-1
Limiting Speeds(Oil Lub.)7500 min-1
Load Center Spread : A23.4 mm
Constant :E0.55
Axial Load Factors : Y11.10
Axial Load Factors : Y00.60
Da45.5 mm
Db42.5 mm
Da59.0 mm
Db70.0 mm
Ra(Max.)1.2 mm
Rb(Max.)3.2 mm
Mass(Refer.)0.615 kg

Technical documents & data sheet

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Record identity
KOYO HM88542/10
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