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To download/print the most current catalog, go to www.lordfulfi llment.com/upload/PC7000.pdf. Rev.1 10/08
Page 91 of 124
DYNAFLEX ELASTOMERIC FLEXIBLE COUPLINGS
Dynafl ex
®
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 Benefi ts
• 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.