EFE
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Catalog excerpts

EFE - 1

ELECTROMAGNETIC BRAKE-CLUTCH SINGULAR PLANE Whithout collector rings Type EFE Description The electromagnetic brake-clutch EFE is a very compact unit, extremely narrow, and providing a quick and reliable answer. Its small length makes it possible to place it on the end of projecting shafts, such as on electric motors, therefore it is an easy-to-install and reliable drive control unit. It is free from collector rings, keeping the electromagnetic unit self-centered by means of a set of self-protected radial bearings, in such a way that they make it independent from the performance of the mechanical brake-clutch unit. The same electromagnetic unit acts as a support for the rest of the unit, making up in itself a compact and self-supporting unit. Operation It must be driven alternatively, going from the clutch, –run–, function, to the brake, –stop–, function and vice versa. Both functions must not be connected at the same time, since, as they are opposed, the first one invalidates the second one. Supply voltage Standard voltage 24 V.D.C., other tensions on request. The connection must be carried out using the corresponding connection cards which are duly marked on the body of the unit. Service versions We manufacture only one service version: Version for working under dry conditions. The presence of oil, greases or similar products highly reduces the torque that can be transmitted. Types We manufacture only one version, that is: Applications For all types of packing and proportioning machines. Machines of any type for the food industry, wooden case nailers, graphic arts, machines for paint manufacturing, circular knitting machines, knitting frames, textile machines in general, machine tools, such as lathes, milling machines, etc. Construction 1, to be installed, indiscriminately, either for connecting two shafts, or to be mounted on a single shaft. ASSEMBLY EXAMPLES machine bedframe Exemple B: Transmission between two independent shafts, well aligned and without axial clearance. Exemple A: Pulley or pinion transmission, etc. with driven shaft. Electromagnetic, pneumatic brakes and clutches Mechanical safety brakes · Centrifugal brakes Flexible couplings · Torque limiters · Spec

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EFE - 2

ELECTROMAGNETIC BRAKE-CLUTCH TYPE EFE SINGULAR PLANE Without collector rings Type EFE Characteristics and Dimensions 1. Clutch coil 2. Ferodo-holding disc 3. Clutch armature 4. Elastic membrane 5. Brake coil 6. Brake armature 7. Elastic membrane 8. Armature support 9. Ball bearing 10. Central body 11-12. Ferodos 13. Fastening pin (2 a 180°) 14. Inductor core Clutch performance When we excite coil 1 with current, the polar mass 2 is magnetized and it draws the clutch ring 3, which grates on the aforementioned polar mass and the friction lining 12, giving rise to the transmission. When we...

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