Dynaflex LCR Dynaflex Elastomeric Flexible Couplings Page 109, Dynaflex LCD Series Couplings

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DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 109 of 124

Dynaflex® LCD Series Couplings

Rated: 75 to 2000 hp at 2000 rpm

LORD Dynafl ex LCD Series Couplings have been developed to overcome numerous torsional problems associated with vehicular and industrial driveline systems. These couplings increase equipment life by protecting against torsional vibration, shock and misalignment.

Typical application attachments include:

Flywheel to shaft

Flywheel to hub (splined)

Shaft to shaft

Floating shaft

Features and Benefits

Protection from torsional shock loads

Design fl exibility

Safe for occasional severe overloads

Vibration isolation – extremely low torsional spring rate is achieved with the Dynafl ex LCD Series Coupling, using elastomer in shear. This allows for low system natural frequencies and isolation of fi rst mode driveline disturbances.

Damping at resonance – the elastomer used in Dynafl ex LCD Series Couplings effectively reduces vibration at resonance.

Shock protection – torsional shock loads are attenu- ated by large shear defl ection of the elastomer. In the case of severe overloads, equipment damage is prevented by slippage between the elastomer and the outer housing.

Misalignment accommodation – elastomer fl exibility allows for angular, parallel and axial misalignment.

Long service life – Dynafl ex LCD Series Couplings have proven themselves under demanding and rugged service conditions.

Maintenance-free – elastomer fl exibility accommo- dates all motion without wear, eliminates the need for lubrication.

Noise reduction – no metal-to-metal contact; elas- tomer attenuates structure-borne noise and isolates vibration from components that would act as noise generators.

Attachment – fi ts many standard SAE fl ywheels.

Design fl exibility – standard rubber molds are used to produce each different size coupling shown in this catalog. Often it is necessary to change metal components for custom applications. This is common.

Systems Engineering – LORD has in-house computer capabilities for multi-mass torsional analysis to assist in proper coupling selection.

A part’s listing in this catalog does not guarantee its availability.

 

To download/print the most current catalog, go to www.lordfulfi llment.com/upload/PC7000.pdf.

Rev.1 10/08

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Contents Application Dynaflex Elastomeric Flexible Couplings Page 87Dynaflex Elastomeric Flexible Couplings Product Lines Dynaflex Elastomeric Flexible CouplingsCoupling Application Guide Dynaflex Elastomeric Flexible Couplings Page 89Dynaflex Elastomeric Flexible Couplings Dynaflex Shear-Type Couplings Features and BenefitsDynaflex Elastomeric Flexible Couplings Page 91 Number Lb-in Lb-in/deg Size ±20% Specifications and DimensionsStandard Bore Static HP at Coupling Part DiametersBore Sizes Tolerance Dynaflex Elastomeric Flexible Couplings Page 93Standard Bore Tolerances Dynaflex Elastomeric Flexible Couplings Dynaflex Spool-Type Couplings Dynaflex Elastomeric Flexible Couplings Page 95Bolt Circle Diameter Torque lb-in x Coupling Configuration Capacity ChartSpool Part Thread Number Diameter Thickness AttachementPart Dimensions J-3424-2 Part Dimensions J-4624-1Dynaflex Elastomeric Flexible Couplings Dynaflex Bushing-Type Couplings Dynaflex Elastomeric Flexible Couplings Page 99Recommended Misalignment Limits Selection GuideTorsional Flexibility ExampleSeries Arrangement Selection Dynaflex Elastomeric Flexible Couplings Page 101Parallel Arrangement Selection Dia Typical Socket DimensionsRadius Dynaflex LCR Series Couplings Dynaflex Elastomeric Flexible Couplings Page 103Typical End Product Application Typical ApplicationsSpecifications Dynaflex Elastomeric Flexible Couplings Page 105Axial Parallel Part NumberDynaflex Elastomeric Flexible Couplings Page 107 Part Dimensions108 Dynaflex LCD Series Couplings Dynaflex Elastomeric Flexible Couplings Page 109Load lb Deflection Standardization of Proven ConceptLoad Deflection Data Torque Load lb-in x Angular Deflection degDynamic Torsional Stiffness, Kθ Dynaflex Elastomeric Flexible Couplings Page 111Number Dynaflex Browning Bushing LCD Series Bore RangeType 1 Dia Type 2 Dia Lb-in Lb-in/rad Rad Lb/in Rated Performance CharacteristicsDynaflex Elastomeric Flexible Couplings Page 113 114 Holes Dynaflex Elastomeric Flexible Couplings Page 115Length Hole Dia No.Dynaflex LCD Series Couplings Installation Guide Tapped Holes InstallationDynaflex Elastomeric Flexible Couplings Page 117 Flywheels for Engine Mounted Torque Converters SAE J927 NovFlywheel to Flanged Shaft Direct LCD -01 Series Engine Flywheel to Keyed Shaft DirectStationary Equipment Having a Tapered Shaft Connection Vehicle Engine with Large Angle Drive RequirementsRemote Driven Units Application DataCoupling Requirements Design ParametersData Required for Lord Coupling Recommendation Dynaflex Elastomeric Flexible Couplings Page 121Coupling Requirements