Group: EATON Airflex
Catalog excerpts
E and VE Construction E Element Type E and VE elements combine rugged design and rigid construction features which make them ideal for moderate to heavy duty clutch and brake service. They are suited for medium speed cyclic applications which are subject to large thermal loads. When used with an air agitating ventilated drum they provide excellent slip clutch and tension brake service. A neoprene rubber and cord tube is contained by two side housings. Friction shoes are held in position on the tube periphery by leaf springs which pass through the shoe back plates and side housings. The springs counteract centrifugal force acting on the shoes and insure shoe disengagement. Torque is transmitted by torque bars which are held in position by the side housings. Pressurizing the tube forces the friction shoes to engage an inside drum diameter. The expanding design allows the element to behave as a centrifugal clutch. The element’s operating speed determines the spring force required to retract the shoes upon tube exhaust. When a large spring force is required, side housings with reinforced spring slots are furnished. C-3 VE Element The VE element differs from the E element in that the VE side housings and friction shoe backing plates have open construction and ventilating features which permits a greater flow of cooling air and greater heat dissipation. Element torque is dependent upon the applied pressure, release spring force and speed. Catalog ratings are given at 75 psi (5,2 bar) and zero rpm. Maximum recommended pressure is 125 psi (8,6 bar). Adjustment for operating pressure, spring force and speed is explained under Selection Procedure. E elements are available in 10 sizes; VE elements in 3 sizes. They are identified by the inside drum diameter in inches to which they expand and the width in inches of their friction lining. For instance, size 16E475 is designed to expand to a 16 inch diameter drum and has a friction lining width of 4.75 inches. The smallest E element will expand to a 12 inch (305 mm) diameter drum and the largest to a 40 inch (1016 mm) diameter drum. E elements are available with split side housings. They are used in applications having limited axial access for element maintenance. Butt end actuating tubes are also available for replacement purposes. Where used: • Construction Equipment • Marine Winches • Metalworking Machinery • Slip Clutches • Tension Brakes Two elements can be bolted to an adapter ring to form a dual element having twice the torque capacity of a single element. Copyright Eaton Corporation, 1997, All rights reserved.
Open the catalog to page 1E and VE Component Descriptions Type VE Torque bar nut Type E 8 3 1 5 6 2 7 4 Torque Rating Item Size English lb•in @ 75 psi SI N•m @ 5,2 bar 12E475 11300 1280 14E475 16000 1810 16E475 21500 2430 19E475 31500 3560 21.5E475 40500 4580 24E475 52000 5880 27E475 67000 7570 30E600 106000 137000 225000 25500 45200 58500 Torque bar (nuts required for VE) 5 Friction shoe assembly 6 Release spring 7 Tube nut 8 Friction block & rivet kit 4,5,6 Torque bars, friction shoes & release springs kit 5110 27VE475 Tube 4 2880 24VE475 Housing half with valve hole 3 25400 19VE475 2 15500 40E700 Housing half...
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