EC75LL

Product Models and Specifications

Options

Maximum Load	8.5 N-m (75 lb-ins)
Direction	CW, CCW
Voltage	12 VDC, 24 VDC
Connector	3" lead with connector
Bore	3/8", 5/8", 1/2", 10mm, 12mm, 15mm
Shaft	Cross Pin

Technology	Electromechanical wrap spring clutch
Low Wattage	The EC75LL requires only 6 watts of power for engagement
High Torque, Small Package Size	The EC75LL provides 8.5 N-m (75 lb-in) of total load over a life of 1 million actuations with an outside diameter of about 44mm (1.75 inches), and a shaft length of about 38mm (1.5 inches). Part weight is 271g (.598 lbs)
Rapid Acceleration	After spring wrap-down, the EC75LL 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.
Operating Parameters	EC75LL performance is best within the following conditions: 0°- 40° C (32°-104° F) 100-800 rpm typical, 1400 rpm max. Minimum load friction torque 0.11 N-m (1.0 lb-in) plus customer input bearing torque.

The Reell EC75LL is sold under the following stock numbers: 78-000 78-021 78-003 78-024 78-006 78-027 78-012 78-033 78-042 78-044 78-001 78-022 78-004 78-025 78-007 78-028 78-010 78-031 78-013 78-034 78-043 78-045 38-000 38-021 38-003 38-024 38-006 38-027 38-012 38-033 38-042 38-044 38-001 38-022 38-004 38-025 38-007 38-028 38-010 38-031 38-013 38-034 38-043 38-045

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 EC75LL'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 EC75LL relies on relative motion between the input and output for engagement. Thus, the slower the speed, the longer the time until engagement.