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KOYO / Single-row / metric series

KOYO 32018JR

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

Technical data available
Bore diameterd
90 mm
Outside diameterD
140 mm
WidthB
32 mm
Dynamic load ratingC
224 kN
Static load ratingC0
276 kN
Limiting speednG
2600 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 diameterd90 mm
Outside diameterD140 mm
WidthB32 mm
Basic dynamic load ratingC224 kN
Basic static load ratingC0276 kN
Fatigue load limitPu41.5 kN
Limiting speednG2600 r/min
Mass≈m1.8 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
d90 mm
D140 mm
T32 mm
B32 mm
C24 mm
R(Min.)2 mm
R1(Min.)1.5 mm
Basic Load Ratings : Cr224 kN
Basic Load Ratings : C0R276 kN
Fatigue Load Limit : Cu41.5 kN
Limiting Speeds(Grease Lub.)2600 min-1
Limiting Speeds(Oil Lub.)3500 min-1
Load Center Spread : A29.8 mm
Constant E0.42
Axial Load Factors : Y11.42
Axial Load Factors : Y00.78
Da(Min.)125 mm
Db(Max.)100 mm
Da(Max.)131.5 mm
Db(Min.)134 mm
Sa(Min.)6 mm
Sb(Min.)8 mm
Ra(Max.)2 mm
Rb(Max.)1.5 mm
Mass(Refer.)1.80 kg

Technical documents & data sheet

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Record identity
KOYO 32018JR
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