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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
LORD engineers can assist you with selecting an appro-
priate coupling type and confi guration. With extensive
analytical capability and years of experience in designing
products for powertrain vibration, shock and motion
control, LORD engineers offer everything from simple
application assistance to complex system analysis and
specialized product design.
Torsional vibration, transient shock and misalignment
load analyses require specialized computer programs
and engineering experience. LORD engineers can
analyze your system and recommend the right solution,
whether it’s a selection from the standard product line or
a custom design.
LORD Corporation’s standard product lines of elasto-
meric fl exible powertrain couplings are presented in the
following sections. Many variations of standard products
are available, but not listed as ‘standard.’ Main drive, fan
drive, PTO and accessory drive couplings are available
in a host of custom designs and variations of standard
products. LORD engineers are ready to help you meet
your specifi c application requirements with custom
designs where necessary.
Product Lines
LORD offers fi ve major lines of elastomeric fl exible
couplings. Standard lines are presented on the following
pages. In addition to the standards listed, many
variations are available in each product line.
Dynafl ex
®
Shear-Type Couplings
LORD Dynafl ex Shear-Type Coupling features a durable
elastomeric fl exing element bonded between two hubs.
These couplings are designed for fractional horsepower
applications requiring smooth starting transition, torsional
vibration isolation and misalignment accommodation.
Typical applications are small electric motor drives,
low-torque mechanisms, power take-offs and auxiliary
equipment drives.
Dynafl ex
®
Spool-Type Couplings
LORD Dynafl ex Spool-Type Couplings can be arranged
in a variety of confi gurations to create a wide range
of torque-transmitting capability. Elastomeric spool
elements can be purchased in lot sizes for customer-
assembled coupling designs, or LORD can provide a
complete coupling assembly to meet specifi c application
requirements. Typical applications are large drives
requiring high torque capacity and low torsional stiffness.
Dynafl ex
®
Bushing-Type Couplings
LORD Dynafl ex Bushing-Type Couplings are bonded
elastomeric elements designed for use in multiple
element coupling confi gurations where high torque
capacity is required. Bushings are available in a
variety of stiffnesses. They can be purchased in lots for
customer-assembled designs, or LORD can provide
complete coupling assemblies designed to meet your
specifi c application requirements. Applications requiring
high torque/high torsional stiffness, but angular, axial and
parallel misalignment accommodation can be designed
using these bushings in a variety of confi gurations
including parallel and series arrangements.
Dynafl ex
®
LCR Series Couplings
LORD Dynafl ex LCR Series Couplings features an
elastomeric ring with bonded, bush-type inserts allowing
various attachment confi gurations. These couplings
offer a soft torsional spring rate which permits smooth
transmission of driving torque while attenuating
shock torques and providing excellent misalignment
accommodation. These couplings are used in PTO
drives where torsion and cocking fl exibility are required.
They can be mated with a variety of hub confi gurations.
Special high-torque designs are available, as well
as custom designs to meet special application
requirements.
Dynafl ex
®
LCD Series Couplings
LORD Dynafl ex LCD Series Couplings are the ultimate
coupling for reciprocating engine drives. This coupling
features a bonded elastomeric fl exing element which is
radially precompressed into a fl anged outer housing.
This design produces a low torsional stiffness for
maximum isolation of engine fi ring-pulse-induced
torsional disturbances, torque overload slip protection,
misalignment accommodation, superior shock pulse
attenuation and fatigue life, and is adaptable to a variety
of drive attachment designs. Custom designs are
available to fi t nearly every SAE fl ywheel confi guration
available from most engine manufacturers.
Page 88 of 124
DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS