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KOYO / Extra-small, miniature ball bearings / standard type / shielded zz

KOYO WML8014 ZZ

Deep groove ball bearings technical reference with manufacturer-sourced dimensions, characteristics and engineering resources.

Technical data available
Bore diameterd
8 mm
Outside diameterD
14 mm
WidthB
4 mm
Dynamic load ratingC
1 kN
Static load ratingC0
0.39 kN
Limiting speednG
44000 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 specifications10 parameters
Core specifications
ParameterSymbolValue
Variant / constructionExtra-small, miniature ball bearings / Standard type / Shielded ZZ
Bore diameterd8 mm
Outside diameterD14 mm
WidthB4 mm
Basic dynamic load ratingC1 kN
Basic static load ratingC00.39 kN
Fatigue load limitPu0.01 kN
Limiting speednG44000 r/min
Mass≈m0.001 kg
SealingShielded ZZ
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key010-020-010
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathDeep groove ball bearings - Extra-small, miniature ball bearings - Standard type - Shielded ZZ
Official Classification 1Deep groove ball bearings / Extra-small, miniature ball bearings / Standard type / Shielded ZZ
Technical Data14 parameters
Technical Data
ParameterSymbolValue
d8 mm
D14 mm
B4 mm
R(Min.)0.15 mm
Basic Load Ratings : Cr1.00 kN
Basic Load Ratings : C0R0.39 kN
Fatigue Load Limit : Cu0.010 kN
Factor : F015.3
Limiting Speeds(Grease Lub.)44000 min-1
Limiting Speeds(Oil Lub.)- min-1
Da(Min.)9.2 mm
Da(Max.)12.8 mm
Ra(Max.)0.15 mm
Mass(Refer.)1.8 g

Technical documents & data sheet

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Record identity
KOYO WML8014 ZZ
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