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KOYO / Single-row / metric series

KOYO 302/28R

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

Technical data available
Bore diameterd
28 mm
Outside diameterD
58 mm
WidthB
16 mm
Dynamic load ratingC
48.5 kN
Static load ratingC0
42 kN
Limiting speednG
7000 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 / Metric series
Bore diameterd28 mm
Outside diameterD58 mm
WidthB16 mm
Basic dynamic load ratingC48.5 kN
Basic static load ratingC042 kN
Fatigue load limitPu6 kN
Limiting speednG7000 r/min
Mass≈m0.209 kg
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key050-010-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathTapered roller bearings - Single-row - Metric series
Official Classification 1Tapered roller bearings / Single-row / Metric series
Technical Data25 parameters
Technical Data
ParameterSymbolValue
d28 mm
D58 mm
T17.25 mm
B16 mm
C14 mm
R(Min.)1 mm
R1(Min.)1 mm
Basic Load Ratings : Cr48.5 kN
Basic Load Ratings : C0R42.0 kN
Fatigue Load Limit : Cu6.00 kN
Limiting Speeds(Grease Lub.)7000 min-1
Limiting Speeds(Oil Lub.)9300 min-1
Load Center Spread : A13.4 mm
Constant E0.37
Axial Load Factors : Y11.60
Axial Load Factors : Y00.88
Da(Min.)49 mm
Db(Max.)35 mm
Da(Max.)52.5 mm
Db(Min.)54 mm
Sa(Min.)2 mm
Sb(Min.)3 mm
Ra(Max.)1 mm
Rb(Max.)1 mm
Mass(Refer.)0.209 kg

Technical documents & data sheet

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Record identity
KOYO 302/28R
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