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KOYO / Single-row / metric series

KOYO 30310CR

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

Technical data available
Bore diameterd
50 mm
Outside diameterD
110 mm
WidthB
27 mm
Dynamic load ratingC
155 kN
Static load ratingC0
143 kN
Limiting speednG
3700 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 diameterd50 mm
Outside diameterD110 mm
WidthB27 mm
Basic dynamic load ratingC155 kN
Basic static load ratingC0143 kN
Fatigue load limitPu21.9 kN
Limiting speednG3700 r/min
Mass≈m1.25 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
d50 mm
D110 mm
T29.25 mm
B27 mm
C20 mm
R(Min.)2.5 mm
R1(Min.)2 mm
Basic Load Ratings : Cr155 kN
Basic Load Ratings : C0R143 kN
Fatigue Load Limit : Cu21.9 kN
Limiting Speeds(Grease Lub.)3700 min-1
Limiting Speeds(Oil Lub.)4900 min-1
Load Center Spread : A27.5 mm
Constant E0.55
Axial Load Factors : Y11.10
Axial Load Factors : Y00.60
Da(Min.)90 mm
Db(Max.)64 mm
Da(Max.)98 mm
Db(Min.)103 mm
Sa(Min.)4 mm
Sb(Min.)9 mm
Ra(Max.)2 mm
Rb(Max.)2 mm
Mass(Refer.)1.25 kg

Technical documents & data sheet

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Record identity
KOYO 30310CR
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