Table of Contents
Foreword
Section1GENERAL
1.1Scope
1.2DefinitionofBrush
1.3ClassificationofBrushesAccordingtoMaterial
1.4ClassificationofBrushesAccordingtoSize
1.5ClassificationofBrushesAccordingtoConstruction
1.6DefinitionofShunt
1.7DefinitionsofBrushSurfaces
1.8BrushConnections
1.9BrushClips
1.10BrushPads
1.11WearIndicators
Section2DIMENSIONSANDTOLERANCES
2.1BrushDimensions
2.2OrderofBrushSurfaceDimensions
2.3Dimensions-Thickness(TangentialDimensions),
Width(AxialDimension),Length(RadialDimension),
andDiameter
2.4Tolerances-Thickness(TangentialDimension),Width
(AxialDimension),(RadialDimension),andDiameter
2.5BeveledEndsandConcaveFaces
2.6BrushHeads
2.7Chamfers
2.8Holes,Counterbores,andCountersinks
2.9Shoulders,Slots,Grooves,andNotches
2.10Toes
2.11AvailableAreaatTopofBrushforApplyingPressure
2.12Shunts
2.13TerminationsofBrushShuntsforScreworBolted
Connection
2.14TerminationofShuntsforBrushestobeUsedin
Cartridge-TypeHolders
2.15QuickConnectedTerminals
2.16ProcedureforDescribingBrushes,IncludingShunts,
etc
Section3TESTPROCEDUREFORPHYSICALPROPERTIES
3.1General
3.2ScleroscopeHardness
3.3IndentationHardness
3.4Resistivity
3.5FlexuralStrength
3.6Density
3.7Porosity
3.8AshContent
Section4TESTPROCEDURESFORSHUNTCONNECTIONS
4.1General
4.2ResistanceofShuntConnections
4.3StrengthofTypeMandQShuntConnections
AppendixASpringDesignInformation
AppendixBCoilSpringsforBrushes
AppendixCRecommendedMinimumClearancesBetweenBrushand
Brushholder
AppendixDInternationalElectrotechnicalCommission(IEC)
LimitsandTolerances
AppendixERecommendedWidthofPressureDevice
AppendixFBrushVoltageDropandCoefficientofFriction
AppendixGDescriptiveTerminology
AppendixHGeometricalUnitsandSymbols
AppendixICommutationSurfaceConditions
AppendixJTechnicalQuestionnaire Abstract
Specifies definitions, dimensions and tolerances, test procedures for physical properties, and test procedures for shunt connections for brushes used in the electrical manufacturing industry. Includes carbon, carbon-graphite, graphite, electrographite, metal-graphite, metal-impregnated, and resin-bonded brushes.
