Eaton-Airflex VC Drum Clutch Element 52VC1200 - Single Wide Series
Eaton-Airflex VC Drum Clutch Element 52VC1200 - Single Wide Series
SKU:CLU-77947f
Explore Eaton-Airflex VC Drum Clutch Element 52VC1200 - High torque, ventilated construction, ideal for industrial applications.
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                The Eaton-Airflex VC Drum Clutch Element 52VC1200 from the Single Wide VC Elements line is built for high torque applications, with a torque rating of 1215000 lb·in | 137275 Nm. Featuring a ventilated construction for optimal cooling and serviceability, this element offers reliability and efficient performance. With a friction area of 1590 in² and air tube cavity of 1510 in³, it is designed for use in Grinding Mills, Marine Propulsion, Metal Forming Machinery, and Oil Field Machinery.
              
Product Specifications
                  Features 0 
                
                Ventilated ConstructionFriction shoe backing plates have large air passages through their entire length. This construction coupled with scalloped side plates allows cooling air to flow through the element. In addition, the large exposed inside diameter assures the coolest possible operation. None of the heat is generated deep in the element's internal parts where it can be trapped. The open construction assures rapid heat dissipation.ServiceabilityThe VC clutch can be dismantled on the shaft to gain access to its component parts. All parts are available as replacement parts.A limited number of element sizes are available in a split configuration. They are used in applications having limited axial access for element maintenance. The following pages give additional descriptive information, selection procedures and common clutch and brake arrangements for the complete VC product line.
              
                  General Description 0 
                
                VC design and construction is different from the CB and CM elements in that the torque is transmitted by torque bars rather than the sidewalls of the actuating tube. The loose actuating tube is contained within a housing formed by a rim and two side plates. and is replaceable. The torque bars, which are held in position by the side plates, pass through cavities in the backing plates of the friction shoes. Pressurizing the actuating tube forces the friction shoes to engage around a cylindrical drum. Leaf springs in the torque bar cavities of the backing plates retract the friction shoes when the actuating tube pressure is released. Element torque capacity is dependent upon the applied pressure and rotating 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 pressure and speed is explained under Selection Procedure.VC elements are available in 24 sizes which are identified by the drum diameter in inches on which they constrict and the width in inches of its friction lining. For a given drum diameter it is possible to have two different lining widths. For this reason, the elements are grouped by lining width into a narrow series and a wide series. As an example, the narrow series 20VC600 and the wide series 20VC1000 both constrict on a 20 inch diameter drum. But, the narrow unit has a lining width of 6 inches, and the wide unit has a lining width of 10 inches. The smallest VC element will constrict on a 11.5 inch (292 mm) diameter drum and the largest on a 76 inch (1930 mm) diameter drum.Two elements of a narrow series can be bolted together to form a dual element having twice the torque capacity of a single element. With the exception of the 14VC1000 element, the wide series elements can also be dualed. The large drum hub diameter and small drum diameter restricts the radial space available for mechanically connecting the drums to the hub and makes dualing the 14VC1000 elements impractical.The VC design offers the following features in addition to the constricting features described earlier in this section.
              
                  Note 0 
                
                Part Number refers to basic part number only. When ordering, the number of air inlets and type of connection must be specified.
              
                  Specifications Actuation 
                
                Air Applied
              
                  Specifications Air Tube Cavity 
                
                1510 in³ | 24.8 dm³
              
                  Specifications Angle Q 
                
                5.63 º
              
                  Specifications Centrifugal Loss Cs 
                
                127 E-06 psi/rpm2 | 8.76 E-06 bar/rpm2
              
                  Specifications Dimension D2 
                
                14.25 in | 362 mm
              
                  Specifications Dimension D24 
                
                7.13 in | 181 mm
              
                  Specifications Dimension D25 
                
                1.13 in | 29 mm
              
                  Specifications Dimension D3 
                
                0.55 in | 14 mm
              
                  Specifications Dimension G 
                
                67.000 in | 1701.8 mm
              
                  Specifications Dimension H2 
                
                65.500 in | 1663.7 mm
              
                  Specifications Dimension H6 
                
                52.25 in | 1327 mm
              
                  Specifications Dimension H7 
                
                65.00 in | 1651 mm
              
                  Specifications Dimension J 
                
                306 kg·m²
              
                  Specifications Dimension L Diameter 
                
                0.875 in | 22.2 mm
              
                  Specifications Dimension O3 
                
                0.88 in | 22 mm
              
                  Specifications Dimension V 
                
                1.13 in | 29 mm
              
                  Specifications Friction Area 
                
                1590 in² | 10256 cm²
              
                  Specifications Friction Shoe Width W 
                
                12 in | 305 mm
              
                  Specifications Manufacturer 
                
                Eaton-Airflex
              
                  Specifications Maximum Speed 
                
                550 rpm
              
                  Specifications Minimum Drum Diameter 
                
                51.75 in | 1314 mm
              
                  Specifications New Friction 
                
                0.68 in | 17 mm
              
                  Specifications Number Of Hole L 
                
                32
              
                  Specifications O4 Number 
                
                4
              
                  Specifications Size 
                
                52VC1200
              
                  Specifications Size O4 
                
                1-11 1/2 NPT
              
                  Specifications Tolerance For L 
                
                +0.005/-0.000 in | +0.13/-0.00 mm
              
                  Specifications Tolerance For Sizes G 
                
                +0.000/-0.010 in | +0.00/-0.25 mm
              
                  Specifications Torque Rating 75 Psi55 Bar 
                
                1215000 lb·in | 137275 Nm
              
                  Specifications Weight 
                
                1310 lb | 594 kg
              
                  Specifications Wk2 
                
                7285 lb·ft²
              
                  Specifications Worn Lining Thickness 
                
                0.38 in | 10 mm
              
                  Specifications W Number 
                
                18
              
                  Where Used 0 
                
                Grinding Mills Marine Propulsion Metal Forming MachineryOil Field Machinery