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

KOYO WMLF8012 ZZX

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

Technical data available
Bore diameterd
8 mm
Outside diameterD
12 mm
WidthB
3.5 mm
Dynamic load ratingC
0.68 kN
Static load ratingC0
0.27 kN
Limiting speednG
47000 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 / Flanged type / Shielded ZZ
Bore diameterd8 mm
Outside diameterD12 mm
WidthB3.5 mm
Basic dynamic load ratingC0.68 kN
Basic static load ratingC00.27 kN
Fatigue load limitPu0.007 kN
Limiting speednG47000 r/min
Mass≈m0 kg
SealingShielded ZZ
Manufacturer Identity2 parameters
Manufacturer Identity
ParameterSymbolValue
BrandKOYO
Official Class Key010-020-020
Classification2 parameters
Classification
ParameterSymbolValue
Official Category PathDeep groove ball bearings - Extra-small, miniature ball bearings - Flanged type - Shielded ZZ
Official Classification 1Deep groove ball bearings / Extra-small, miniature ball bearings / Flanged type / Shielded ZZ
Technical Data15 parameters
Technical Data
ParameterSymbolValue
d8 mm
D12 mm
B3.5 mm
R(Min.)0.08 mm
Basic Load Ratings : Cr0.68 kN
Basic Load Ratings : C0R0.27 kN
Fatigue Load Limit : Cu0.007 kN
Factor : F015.9
Limiting Speeds(Grease Lub.)47000 min-1
Limiting Speeds(Oil Lub.)- min-1
Dimensions Of Flange D113.6 mm
Dimensions Of Flange C10.8 mm
Da(Min.)8.8 mm
Ra(Max.)0.08 mm
Mass(Refer.)0.9 g

Technical documents & data sheet

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Record identity
KOYO WMLF8012 ZZX
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