The model EC25 high performance clutch has proven ideal for applications requiring
consistently repeatable performance for 1 million actuations at 2.83
N-m (25 lb-in) of total load. Slip during engagement is virtually eliminated and disengagement
response is instant. Reell's clutches are designed for easy mechanical and electrical
assembly and for low power consumption. The EC25 offers high quality performance
and increased torque capacity at a competitive price.
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Design Characteristics
Technology |
Electromechanical wrap spring clutch |
Low Wattage |
The EC25 requires only 2.5 watts of power for engagement |
High Torque, Small Package Size |
The EC25 provides 2.83 N-m (25 lb-in) of total load over a life of 1 million
actuations with an outside diameter of about 30mm (1.2 inches), and a shaft
length of about 27mm (1 inch). |
Rapid Acceleration |
After spring wrap-down, the EC25 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 EC25'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 EC25 relies on relative motion between the input and output for engagement.
Thus, the slower the speed, the longer the time until engagement. |
Operating Parameters |
EC25 performance is best within the following conditions:
- 0°- 40° C (32°-104° 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, 6mm
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