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KOYO / Single-row / inch series

KOYO 495AX/492A

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

Technical data available
Bore diameterd
76.2 mm
Outside diameterD
133.35 mm
WidthB
29.769 mm
Dynamic load ratingC
167 kN
Static load ratingC0
198 kN
Limiting speednG
2700 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 diameterd76.2 mm
Outside diameterD133.35 mm
WidthB29.769 mm
Basic dynamic load ratingC167 kN
Basic static load ratingC0198 kN
Fatigue load limitPu30 kN
Limiting speednG2700 r/min
Mass≈m1.63 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
d76.200 mm
D133.350 mm
T30.162 mm
B29.769 mm
C22.225 mm
R(Min.)6.4 mm
R1(Min.)3.2 mm
Basic Load Ratings : Cr167 kN
Basic Load Ratings : C0R198 kN
Fatigue Load Limit : Cu30.0 kN
Limiting Speeds(Grease Lub.)2700 min-1
Limiting Speeds(Oil Lub.)3600 min-1
Load Center Spread : A29.8 mm
Constant :E0.44
Axial Load Factors : Y11.35
Axial Load Factors : Y00.74
Da98.0 mm
Db86.0 mm
Da120.0 mm
Db128.0 mm
Ra(Max.)6.4 mm
Rb(Max.)3.2 mm
Mass(Refer.)1.63 kg

Technical documents & data sheet

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Record identity
KOYO 495AX/492A
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