Dynaflex LCD, LCR Dynaflex Elastomeric Flexible Couplings Page 91, Dynaflex Shear-Type Couplings

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DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS Page 91 of 124

Dynaflex® Shear-Type Couplings

Rated: 1/50 to 1 hp at 1750 rpm

LORD Dynafl ex Shear-Type Couplings are compact, one-piece fl exible couplings economically constructed to isolate low-frequency vibration and accommodate multi- directional misalignment.

These couplings reduce the adverse effects of transient shock torques, torsional vibration, noise and misalign- ment associated with small equipment drivelines. This results in longer service life, smoother, quieter operation, less maintenance, and lower cost for your end product.

Shear-Type fl exible couplings are useful in many small equipment driveline applications. Multi-directional misalignment capabilities make them ideally suited for fractional horsepower drivelines demanding noise reduc- tion, vibration isolation and maintenance-free operation.

Typical applications include:

Information Systems – Motor drive, printer rollers, indexing devices, linear actuator, drives and card sorters

Hospital Bed – Actuator drive

Dynamometer – Driveline

Tachometer – Driveline

Pumps, Blowers, Compressors – Driveline

Features and Benefits

High torsional defl ection

Easy installation

Versatile application potential - fractional horsepower couplings are available in a range of sizes to permit matching a specifi c coupling to your application.

One-piece construction – convenient for small equipment with fractional horsepower requirements. Specifi ed torque rating allows 15° angular defl ection for excellent vibration isolation.

Multi-directional misalignment accommodation – elas- tomeric fl exibility accommodates misalignments up to 1/32 inch parallel, 2° angular.

Vibration isolation – low torsional stiffness is achieved with the shear-type fl exible coupling because

the rubber is loaded in shear. This allows for low system natural frequencies and excellent driveline disturbances.

Shock protection – torsional shock loads are attenu- ated by torsional defl ection of the elastomer. Torsional fl exibility smooths out rotational disturbances and protects system components from early fatigue failure.

Noise reduction – no metal-to-metal contact; elasto- meric barrier reduces gear noise, transmission and motor hum between shifts.

Maintenance-free – elastomer fl exibility accommo- dates all motion without metal-to-metal wear, elimi- nates the need for lubrication.

Long service life – Dynafl ex Shear-Type Couplings have proven themselves under demanding service conditions. Elastomers resist effects of abrasive mate- rials, oil and grease.

Attachment – shear-type fl exible couplings are avail- able in an assortment of bore sizes. Refer to Table 1.

Constant velocity – inherent design properties produce a rotational constant velocity.

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 Standard Bore Static HP at Specifications and DimensionsCoupling Part Diameters Number Lb-in Lb-in/deg Size ±20%Bore Sizes Tolerance Dynaflex Elastomeric Flexible Couplings Page 93Standard Bore Tolerances Dynaflex Elastomeric Flexible Couplings Dynaflex Spool-Type Couplings Dynaflex Elastomeric Flexible Couplings Page 95Spool Part Thread Coupling Configuration Capacity ChartNumber Diameter Thickness Attachement Bolt Circle Diameter Torque lb-in xPart Dimensions J-3424-2 Part Dimensions J-4624-1Dynaflex Elastomeric Flexible Couplings Dynaflex Bushing-Type Couplings Dynaflex Elastomeric Flexible Couplings Page 99Torsional Flexibility Selection GuideExample Recommended Misalignment LimitsSeries 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 Deflection Data Standardization of Proven ConceptTorque Load lb-in x Angular Deflection deg Load lb DeflectionDynamic 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 Length Hole Dia Dynaflex Elastomeric Flexible Couplings Page 115No. HolesDynaflex LCD Series Couplings Installation Guide Dynaflex Elastomeric Flexible Couplings Page 117 InstallationFlywheels for Engine Mounted Torque Converters SAE J927 Nov Tapped HolesFlywheel 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 RequirementsCoupling Requirements Application DataDesign Parameters Remote Driven UnitsData Required for Lord Coupling Recommendation Dynaflex Elastomeric Flexible Couplings Page 121Coupling Requirements