Airflex® Water-Cooled Brakes Section D EATON Airflex® Clutches & Brakes 10M1297GP November 2012

Airflex Water Cooled Brakes WCB2 and WCBD Airflex® Water Cooled Brakes ® WCB2 and WCBD Section D WheRe USeD • Drilling rigs • Dynamometers • Logging equipment • Marine mooring systems • Slip clutches WCB elements are disc type, externally cooled units. They are designed to absorb and dissipate the thermal loads associated with the most severe clutch and brake applications. The WCB friction couple was developed specifically for continuous slip service and has a dynamic coefficient of friction that is greater than its static coefficient of friction. Also available, special high coefficient linings,...

WCB2 & WCBD Component Parts Dual Piston Cylinder Description Mounting Flange Sub-Assembly Mounting Flange Wear Plate Hex Head Screw Locknut Description Inner Support Ring Mounting Flange Sub-Assembly Outer Support Ring Mounting Flange Stud Wear Plate Friction Disc Hex Head Screw Sub-Assembly Friction Disc Locknut Inner Friction Disc Core Support Ring Flat Head Screw Outer Support Ring Stud Clamp Tube Friction Disc Sub-Assembly Pressure Plate Sub-Assembly Friction Disc Plate Pressure Friction Disc Core Flat Washer Lock Nut Cylinder Inner Seal Outer Seal Gear Description Wear Spacer Lock Nut Reaction...

WCB2 & WCBD Elements Dimensional Data* WCB2 & WCB2 WCBD Elements–– Dimensional Data* Section D & WCBD Elements: Dimensional Data* Mounting Bolt Circles ➋ Mounting Bolt Circles WCB2 & WCBD Elements–– Dimensional Data* 30° WCB2 &35° WCBD Elements–– Dimensional Data* 30° Mounting Bolt Circles 2 Mounting Bolt Circles 30° 35° Coolant Inlet Port Coolant Inlet Port Coolant Inlet Port 30° Coolant Inlet Port Coolant Inlet Port Coolant Inlet Port 22.5° 22.5° 14WCB 18WCB 30° 24WCB 30° 36WCB 48WCB 35° Coolant 8WCB Port 65.5° Coolant Inlet Port Inlet Coolant Inlet Port Coolant Inlet Port Coolant Inlet Port...

WCB2 & WCBD Elements: WCB2 & WCBD Elements Dimensional Data Airflex® Water Cooled Brakes Effective: December 2009 Maximum allowable outlet pressure — 20 psi O2 3 Air Inlet Ports Equally Spaced maximum allowable outlet temperatures are 150°F (65°C) for fresh water; 165°F (74°C) for 70/30 and 60/40 water glycol mixes; and 170°F (77°C) for 50/50 water glycol mixes. See detailed cooling requirements in the WCB11070 IOM, section 2.4. position. Flow rates shown are for fresh water, flow rates for water glycol mixes must increase to achieve the ratings in the Thermal Rating column. See detailed cooling...

Gear Part Number SI Notes: 1. Basic part number only. Order gear separately. 2. Exact torque rating is dependent upon applied pressure. Maximum allowable pressure is 150 psi (10,3 bar). 3. Based on a 70°F (21°) fresh water inlet temperature and a maximum 50°F (28°C) rise between inlet and outlet. The maximum allowable outlet temperatures are 150°F (65°C) for fresh water; 165°F (74°C) for 70/30 and 60/40 water glycol mixes; and 170°F (77°C) for 50/50 water glycol mixes. See detailed cooling requirements in the WCB11070 IOM, section 2.4. 4. To insure proper cooling, inlet port must be at the six...

WCB2 & WCBD Elements Technical Data WCB2 Section D & WCBD Elements: Technical Data english Maximum Slip Speed ➎ Maximum Weight Freewheeling housing Speed ➏ Mass Disc & Gear Center of Gravity ➐ housing Disc & Gear Center of Gravity Disc & Gear Water Volume Lining Wear Volume 5. Based upon a continuous slip velocity of 4500 fpm (22,9 mps). 6. Maximum freewheeling velocity is 7500 fpm (38,1 mps). 7. Located from mounting flange surface. 8. Absolute volume of cylinder at contact with new and worn friction discs. EATON Airflex® Clutches & Brakes 10M1297GP November 2012 9. Pressure drop coefficient...

Airflex® WCS Description Section D WCS elements are disc type, externally cooled, spring applied units. They are designed to absorb and dissipate the thermal loads associated with the most severe braking and tensioning applications. The WCS friction couple was developed specifically for continuous slip service and has a dynamic coefficient of friction which is larger than its static coefficient of friction. Special high coefficient linings are also available which provide 50% higher torque than standard friction linings and provide a 1:1 dynamic to static torque ratio. Element construction and...

Item Description 1 Mounting Flange Sub-Assembly 4 Hex Head Screw 6 Inner Support Ring 7 Outer Support Ring 9 Friction Disc Sub-Assembly 11 Friction Disc Core 12 Flat Head Screw 15 Pressure Plate Sub-Assembly Item Description 21 Hex Head Screw 28 Reaction Plate Sub-Assembly EATON Airflex® Clutches & Brakes 10M1297GP November 2012

J2 G Single Disc * Size 18, 24 & 36 Customer's mounting plate must provide rigid support and contact for this length 0 Holes Based or 16 equally spaced as shown on 42.000 0 Holes Based or 6 equally spaced as shown on 11.125 0 Holes Based on 8 equally spaced as shown on 17.500 English Dimensions in inches 8WCSe 0.81 1.25 0.2502.56 12.125 4.12 8.375 3.12 12.24 3 1/4-20NC-2 3.500 3/8-18 6.63 EATON Airflex® Clutches & Brakes 10M1297GP November 2012

© To insure proper cooling, inlet port must be located at the six o'clock position. © Tolerance Sizes 8WCS thru 24 WCS +0.000/0.003 (+0,00/-0.08) 36WCS +0.000/-0.005 (+0,00/-0,13) © Tolerance +0.003/-0.000 in (+0,00/-0,00 mm) © American National Pipe Thread. © 1.00 in (25mm) for 108WCS. 1.38 in (35mm) for 208WCS. 0.19 in (4,8mm) for 308WCS. © 1.06 in (27mm) for 114WCS and 314WCS. 1.69 in (43mm) for 214WCS. © Maximum bore sizes are based on flat keys, allow able gear hub stresses and torque ratings with a full complement of springs. Bore O Coolant © Maximum diameter of "as cast” surfaces. ©...