The model EC30 Long-Life (EC30LL) design is optimized for applications which
have higher hour and/or input revolution requirements up to 80 million bearing
revolutions. Slip during engagement is virtually eliminated and disengagement
response is instant. The EC30LL offers high quality performance and increased
torque capability at a competitive price.
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Design Characteristics
Technology |
Electromechanical wrap spring clutch |
Low Wattage |
The EC30LL requires only 3.5 watts of power for engagement |
High Torque, Small Package Size |
The EC30LL provides 3.39 N-m (30 lb-in) of total load over a life of 1
million actuations with an outside diameter of about 33mm (1.3 inches), and
a shaft length of about 27mm (1 inch). It also provides approximately 80
million revolutions for typical applications. 2 - 10 times the bearing life
of stadard EC30's. |
Rapid Acceleration |
After spring wrap-down, the EC30LL will accelerate loads from zero to
full speed in less than 3 milliseconds. |
Consistent Performance |
Engagement is made with virtually no slippage and disengagement is almost
instantaneous. |
Power Source |
All Reell clutches operate on either filtered or unfiltered dc power.
The use of filtered power is recommended for better life at high speed. |
Application Considerations
Single Direction |
Wrap spring clutches provide torque only in the direction
in which they wrap down. This allows for overrunning. |
Relative High Shock |
Due to the EC30LL's rapid acceleration, system inertia effects can be
significant. In some applications an in-line slip device may be used for
shock absorption. Please contact a Reell Sales Representative for more information
regarding this option. |
Engagement Relative to Speed |
The EC30LL relies on relative motion between the input and output for
engagement. Thus, the slower the speed, the longer the time until engagement. |
Operating Parameters |
EC30LL performance is best within the following conditions:
- 0°- 60° C (32°-140° F)
- 100-800 rpm typical, 1400 rpm max.
- Minimum load friction torque 0.05 N-m (6.0 oz-in) plus customer input bearing torque.
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Available Options:
Direction: CW, CCW
Bore: 1/4 inch, 5/16 inch, 6 mm, 8 mm
Shaft: Cross Pin Only
Voltage: 12 VDC, 24 VDC
Electrical Connection: Molded Connector
Applications
- Paper Feed Systems
- Copiers/Printers
- Finishing Equipment
- Collators/Sorters
- Mailing Equipment
- Ticket and Receipt Dispensers
- Revolving Media Displays
- Packaging Equipment