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Reell Product Data Sheet
Clutch :: EC20 CBLL - 14319 EC20CBLL Clutch
The patented model EC20 Clutch BrakeLong-Life (EC20CBLL) design provides
stopping and holding torque in addition to
clutching. Reell’s clutches are designed for
easy mechanical and electrical assembly
and for low power consumption. It is
ideally suited to paper transfer
applications.
Design Characteristics Application Considerations
Operating Parameters Technology Rapid Acceleration Consistent Performance Single Direction Engagement Relative to Speed Relative High Shock EC20CB performance is best within the
following conditions: •0°- 40°C (32°-104°F)
•100-800 rpm typical, 1400 rpm max.
•Minimum load friction torque 6 oz-in (0.05N-m) plus customer input bearing torque. The EC20CBLL relies on relative motion
between the input and output for
engagement. Thus, the slower the speed, the
longer the time until engagement. Power Source After
spring wrap-down, the EC20CBLL will
accelerate loads from zero to full speed in less
than 3 milliseconds. High Torque, Small Package Size Electromechanical wrap
spring clutch. Engagement is made with virtually no slippage
and disengagement is almost instantaneous. Wrap
spring clutches provide torque only in
the direction in which they wrap down. This
allows for overrunning. Due to the EC20CBLL's rapid acceleration,
system inertia effects can be significant. In
some applications a slip device or coupler
may be used as a shock absorber. Low Wattage The EC20CBLL provides 20 lb-in (2.26 N-m) of
total load over a life of 1 million actuations
with an outside diameter of about 1.3 inches
(33mm), and a shaft length of about 1 inch
(25.4mm). All Reell clutches operate on either filtered or
unfiltered dc power. The EC20CBLL requires a
pick voltage of 24V and a hold voltage 12V.
The use of filtered power is recommended for
better life at high speed. The EC20CBLL uses 14 watts at 24V for
engagement. This voltage is held for 50 msec.
The hold voltage of 12 volts uses only 3.5
watts of power. Innovative Torque Solutionswww.reell.com
