Dynaflex LCD User Manual

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

DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS

Featuring: Dynafl 

ex

®

 Shear-Type Couplings

  

Dynafl 

ex

®

 Spool-Type Couplings

  

Dynafl 

ex

®

 Bushing-Type Couplings

  

Dynafl 

ex

®

 LCR Series Couplings

  

Dynafl 

ex

®

 LCD Series Couplings

Effi cient power transmission and driveline component 

durability are among powertrain designers’ most impor-

tant concerns. Increased durability and up-time are two 

characteristics demanded by purchasers of today’s 

complex and expensive machinery. These demands can 

only be met with reliable, trouble-free, smooth-running 

powertrains free from damaging loads which compro-

mise component life.

Powertrain component life is determined by the load 

spectrum each component will experience during the 

machine’s service life. Reciprocating engines, such as 

spark-ignited gasoline and compression-ignited diesels, 

produce alternating torque loads which, when super-

imposed on the steady driving torque, create alter-

nating stresses in driveline system components which 

shorten component life and reliability. High transient 

start-up torques and misalignment caused by skewed 

rotational axes between driver and driven in electric 

motor, hydraulic and pneumatic drives also cause high 

imposed forces on driven components. These unwanted 

forces loosen bolted joints and cause spline fretting, 

clutch disk wear, bearing failure, gear tooth fatigue and 

shaft fatigue, among an array of other problems.

Elastomeric fl exible couplings solve these problems. 

They prolong driveline component life because they 

reduce the magnitude of imposed loads, attenuate vibra-

tion in multiple planes, accommodate misalignments 

in multiple planes, and act as barriers impeding noise 

created by meshing gears, engaging clutches, etc.

Elastomeric fl exible couplings are also maintenance-

free. They require no lubrication or other maintenance 

throughout their service life. Among the large variety of 

coupling types available, LORD Corporation’s elasto-

meric couplings offer the most comprehensive package 

of benefi ts available to the powertrain designer. LORD 

Corporation’s product lines include fi ve different elas-

tomeric coupling styles which cover a wide range of 

application requirements.

Application requirements suggest the coupling style 

needed to optimize powertrain performance and 

component longevity. Misalignment accommodation, 

torsional vibration isolation, transient shock dissipation 

and required service life are important parameters 

to consider when selecting a coupling to fi ll specifi c 

application requirements.