The Wichita Air-Tube Disc Brakes combines all the best features of the disc type clutch with all the advantages of direct air engagement. The simplest and most trouble-free method of applying air pressure is through direct axial pressure application by compressed air in a special composition full-circle tube.
        
                    Unit of Measure
                    
               
        
            Specifications
                                                                                Assembly Number | 
                                                                        N/A 7-060-300-301-0 | 
                                                                                Dynamic Torque Rating (80 psi/5.5 bar) | 
                                                                        N/A 7140000 lb·in709000 Nm | 
                                                                                Dynamic Torque Rating (100 psi/7 bar) | 
                                                                        N/A 8925000 lb·in902300 Nm | 
                                                                                Maximum Bore Size | 
                                                                        N/A 19.00 in480 mm | 
                                                                                Maximum Air Pressure | 
                                                                        N/A 130 psi9 bar | 
                                                                                Maximum RPM (Standard Airtube) | 
                                                                        N/A 380 rpm | 
                                                                                Maximum RPM (High Speed Airtube) | 
                                                                        N/A 575 rpm | 
                                                                                Total Brake (Weight) | 
                                                                        N/A 11643 lb5281 kg | 
                                                                                Weight (Hub & Center Plate) | 
                                                                        N/A 3870 lb1755 kg | 
                                                                                WR2/J=mr2 (Hub & Center Plate) | 
                                                                        N/A 10615 lb·ft²448 kg·m² | 
                                                                                Dimension A | 
                                                                        N/A 70.50 in1790.7 mm | 
                                                                                Bolt Hole Diameter B | 
                                                                        N/A 74.500 in1892.3 mm | 
                                                                                Dimension C | 
                                                                        N/A 59.990/60.000 in1523.7/1524.0 mm | 
                                                                                Dimension D | 
                                                                        N/A 70.50 in1790.7 mm | 
                                                                                Dimension F | 
                                                                        N/A 12.25 in311.2 mm | 
                                                                                Dimension G | 
                                                                        N/A 3.50 in88.9 mm | 
                                                                                Dimension H | 
                                                                        N/A 22.88 in581.2 mm | 
                                                                                Dimension J | 
                                                                        N/A 0.38 in9.5 mm | 
                                                                                Number of Mounting Holes (L) | 
                                                                        N/A 24 | 
                                                                                Dimension L | 
                                                                        N/A 2.06 in52.3 mm | 
                                                                                Dimension M | 
                                                                        N/A 35.50 in901.7 mm | 
                                                                                Dimension N | 
                                                                        N/A 28.15 in715.0 mm | 
                                                                                Dimension Q | 
                                                                        N/A 3.25 in797.6 mm | 
                                                                                Dimension R (Number - Size) | 
                                                                        N/A 6 - 1/2 NPT | 
                                                                                Dimension T | 
                                                                        N/A 28.5 in723.9 mm | 
                                                                                Minimum U | 
                                                                        N/A 11.00 in279.4 mm | 
                                                                                Maximum U | 
                                                                        N/A 19.00 in482.6 mm | 
                                                                                Manufacturer | 
                                                                        N/A Wichita Clutch | 
                                                                                Actuation | 
                                                                        N/A Air Applied | 
