The WPT Advantage The WPT advantage is built into every one of our Water Cooled Brakes (WCB). Airtube Advantage Standard with all WCB units, the reinforced neoprene airtube reacts accurately to small pressure changes and offers no resistance to movement - therefore increasing sensitivity. Our airtubes are inherently corrosion resistant and require no additional coatings or protective treatments. They are ideal for marine and other harsh environmental applications where real world conditions can severely affect performance and reliability. Finally, the WPT airtube design ensures product performance without the need of expensive and complicated control packages. Controllability is as easy as a simple pressure control valve and regulator. Preferred Airtube StyleVS Piston Style Upgrade your current piston style to the airtube advantage with an easily installed WPT kit. O-Ring Advantage Each WCB water jacket, sealed with WPT high-temp silicone o-rings, is superior to other designs as they allow for the expansion and contraction of the copper while the heat is being dissipated. O-rings make for easy and efficient field service by allowing immediate seal testing and return to service. This eliminates wait-time for the seal to cure which means our customers experience greater efficiency and less downtime.
Water Cooled Brakes WCB WCB brakes are specifically designed for applications in which large thermal loads must be dissipated. Typical applications: Dynamometers, forestry / logging equipment, anchor handling and towing winches, mooring winch systems, petroleum drilling equipment and tension brakes. WCB Spring Set Similar to the WCB, the WCB/SS is a spring applied, air-release, fail-safe brake. Typical applications: forestry / logging equipment, anchor handling and towing winches, mooring winch systems and petroleum drilling equipment WCB Dual Actuated The WCB/DA combines air applied control and spring applied fail-safe features, is specifically designed for heavy duty braking and holding applications, where emergency stop and parking brake features are necessary. Typical applications: forestry and logging equipment, anchor handling and towing winches, mooring winch systems, petroleum drawworks equipment. - 1 -
WCB Q COOANT OUTETS P R S COOANT INETS WCB dimensions inches (mm) A B C D E F G H J K A B C D E K M N O G H H F J 8 18 18 18 1 16 6 6 6 5/8 5/8 5/8 5/8 (.9) (.9) (.9) (.9) 55/6 (9.) 55/6 (9.) 55/6 (9.) 55/6 (9.) +.000/-.00 (+.00/-.08) +.00/-.000 (+.08/-.00) 18.50 (6.55) 18.50 (6.55) 18.50 (6.55) 18.50 (6.55).5.5.5.5.98 1 18.5 (0.5) 1 (66.).98 1 18.5 (0.5) 1 (66.).98 1 18.5 (0.5) 1 (66.).98 1 18.5 (0.5) 1 (66.) (9.) (9.) (9.) (9.) 1 / (.9) 1 / (.9) 1 / (.9) 1 / (.9) 9 /6 (.) 1 5/ (.) 1 (8.) (56.1) (9.) 15 1/ (9.) (609.6) 0 1/ (.) 1 0 / (5.1) 1/ (698.5) 5 (889.0) (18.) 19/ (69.1) 1 15/16 (5.0) 1 9/ 9 1/6 (5.) 1 5/16 (8.1) 1 / (0.5) 1 /16 (5.5) 1 1/16 (06.) 1 1/ (.6) 6 1/ (685.0) /8 (.) /8 (.) /8 (.) /8 (.) 1 1/ 1 1/ 1 1/ 1 1/ 1 NOTES: 6 brakes: +0.000/-0.005 (+0.00/-0.1) 18 and brakes have () mounting holes based on a (1) hole pattern 6 brakes have (1) mounting holes based on a (16) hole pattern () holes omitted for coolant inlets/outlets Maximum bores shown are with a standard square key. Contact WPT Engineering for bore sizes exceeding those shown. / / / / 1/8 (.8) 1/8 (.8) 1/8 (.8) 1/8 (.8) 1/ (16.) 1/ (16.) 1/ (16.) 1/ (16.) 1 / (.5) 1 / (.5) 1 / (.5) 1 / (.5) 19/ 19/ 19/ 19/ Contact Customer Service for drawing before finalizing design. Certified prints available on request. Dimensions are considered as reference only and subject to change. - -
WCB SPECIFICATIONS Standard TORQUE RATINGS @ 0 psi (lb-in)/ bar (Nm) High Coeff Heat Dissipation Capacity Water Flow (Minimum) AIR VOUME/ENGAGEMENT Max WEIGHT AND INERTIA Max Slip Disengaged New Worn Speed Speed Total Weight Hub & DP Weight Hub & DP Inertia Size lb-in Nm lb-in Nm Hp kw gpm /min in in rpm rpm lb (kg) lb (kg) lbft (wr ) (kgm (J)) Size 8,900 5,150 6,0,00 10 89.5 1 5. 59 1.0 1.0 850 1560 1 (150) 86 (9) 18.8 (0.9) 8 18 89,800, 1,00 15,00 0 19.0 90.8 69 1.1 1.0 850 1560 60 (09) 1 (8) 8.1 (1.61) 18 18 1,00 15,60 01,00,0 60 68.5 6 16. 8 1. 1.0 850 1560 88 (85) (1) 5. (.) 18 18 19,600 0,60 68,00 0,8 80 5.9 8 181. 88 1. 1.0 850 1560 1,6 (561) (169) 8.1 (.9) 18 1 1,600 1,800 166,00 19,10 0 01.. 10.8 99.9 60 0 8 (6) 196 (89) 1.9 (.0) 1,00 5,600,00 8,60 50 0. 5 0. 190.1 99.9 60 0 1,08 (58) 8 (19) 18 (6.1),800 8,00 500,0 5,80 8 60.0 81 06.6 09. 99.9 60 0 1,6 () 61 (86) 19 (9.1) 6,00 51,00 666,00 6,5 80 805. 8 08.8 8. 99.9 60 0 1,950 (88) 850 (86) 9 (1.) 16 5,500,080 561,00 6,80 650 8. 65 6.1 1. 661.8 5 5,68 (9) (15) (15.8) 16 6 51,000 86,160 1,1,00 18,50 1,00 969. 10 9.1 1 5.1 661.8 5 5,919 (1) 908 (1) 0 (9.) 6 6 1,16,500 19,50 1,68,600 19,10 1,950 1,5 195 8. 55 5.8 661.8 5 5 5,00 (9) 1,5 (6) 1, (6.6) 6 6 1,50,000 1,0,,800 5,500,600 1,99 60 98. 96 6.5 661.8 5 5 6,501 (98) 1,99 (906) 1,5 (6.) 6 NOTES: Torque rating is dependent on air pressure applied. Brake torque is directly proportional to the air pressure applied. Maximum allowable air pressure is 10 psi (9 bar). The thermal ratings listed require a water flow of one gallon per minute for every hp (one liter per minute for every kw). The thermal ratings listed are based upon a 50 F (8 C) temperature rise between the inlet and outlet. The outlet water temperature should not exceed 150 F (65 C). Maximum water jacket inlet pressure is 5 psi (.1 bar) for the 18 / and 0 psi (.8 bar) for the 6. Contact WPT Engineering for Ethylene Glycol Flow requirements. COOANT INETS / OUTETS M N O P AIR INETS Q R S MOUNTING HOES BORE RANGE QTY (NPT) QTY 8 1 16 /-1 8 /-1 1 /-1 16 /-1 1-- 8 1-- 1 1-- 16 1-- 1 1 1 1 /8 /8 /8 /8 1/16 (1.) 5 5/8 (1.9) 9 5/8 (.5) 1 1/ (1.5) 1/ (88.9) 8 5/8 (19.1) 1 /16 (5.0) 16 15/16 (0.) 5 (1.0) 9 (8.6) 1 (0.) 18 9/ (.1) 9/ (.1) 9/ (.1) 9/ (.1) TAP HOE CENTER 1.188 1.188 1.188 1.188 18.500 (69.90) 18.500 (69.90) 18.500 (69.90) 18.500 (69.90) QTY 5 /8-16 5 /8-16 5 /8-16 5 /8-16 6 /8-16 6 /8-16 6 /8-16 6 /8-16 18.5 6 1/-1 18.5 6 1/-1 18.5 6 1/-1 18.5 6 1/-1 BOT CIRCE QTY 1 1 1 1 BOT CIRCE 8.50 (0.5) 8.50 (0.5) 8.50 (0.5) 8.50 (0.5) (66.80) (66.80) (66.80) (66.80) MIN MAX / / / / (1.6) (1.6) (1.6) (1.6) 1/8 1/8 1/8 1/8 8 18 18 18 1 16 6 6 6 - -
WCB/SS WCB/SS SPECIFICATIONS SPRING APPIED TORQUE RATINGS MINIMUM REEASE PRESSURE* Q COOANT OUTETS 5 psi (lb-in)/5. bar (Nm) 90 psi (lb-in)/6. bar (Nm) Standard High Coeff Standard High Coeff Size lb-in Nm lb-in Nm lb-in Nm lb-in Nm R P 8 9,800,0 0,00,50,0,860 6,000 5,190 18 5,800 6,50,900 8,800 66,00,80 89,00,080 18 8,0 9,500,00 1,90 96,00,890 19,800 1,60 18 8,500 1,60 16,00 16,5 1,00 1,060 16,00 18,90 1,500 8, 0,00,0 90,00,190,500 1,0 1,00 16,90 19,00 1,950 1,800 19,50 5,500 6,6 09,00,60 81,800 1,80 5,900 8,690,000 8,650 60,000 9,0 50,00 9,50 16,00 5,0 6,000 8,10 16 6,00 9,900 56,600 0,90 0,800 6,50,00 8,80 6 5,000 59,090 0,500 9,600 6,900 1,60 85,000 96,90 6 65,00 86,0 1,01,000 6,90 9,900,80 1,50,0,0 6 99,900, 1,0,00 151,0 1,06,600 16,0 1,65,500 18,660 S COOANT INETS WCB/SS dimensions inches (mm) A B C D E G H J +.000/-0.00 (+0.00/-0.08) +.00/-.000 (+0.08/-0.00) A B C D K M O N J 8 18 18 18 1 16 6 6 6 5/8 5/8 5/8 5/8 (.9) (.9) (.9) (.9) 55/6 (9.) 55/6 (9.) 55/6 (9.) 55/6 (9.) 18.50 (6.55) 18.50 (6.55) 18.50 (6.55) 18.50 (6.55).5.5.5.5.98 1 (0.5) 1 18.5 (66.).98 1 (0.5) 1 18.5 (66.).98 1 (0.5) 1 18.5 (66.).98 1 (0.5) 1 18.5 (66.) (9.) (9.) (9.) (9.) 1 / (.9) 1 / (.9) 1 / (.9) 1 / (.9) 9 /8 (50.8) 1 / (5.) 16 9/16 (0.6) 19 9/ (505.6) 1 /16 (1.) 1 /8 (1.) 1 5/16 (51.) 5 (61.) 16 (.1) 1 9/6 (58.9) 6 9/16 (6.) 1 /6 (800.5) /8 (.) /8 (.) /8 (.) /8 (.) 1 1/ 1 1/ 1 1/ 1 1/ / / / / 1/8 (.8) 1/8 (.8) 1/8 (.8) 1/8 (.8) 1/ (16.) 1/ (16.) 1/ (16.) 1/ (16.) NOTES: 1 6 brakes: +0.000/-0.005 (+0.00/-0.1) 18 and brakes have () mounting holes based on a (1) hole pattern 6 brakes have (1) mounting holes based on a (16) hole pattern () holes omitted for coolant inlets/outlets Maximum bores shown are with a standard square key. Contact WPT Engineering for bore sizes exceeding those shown. Contact Customer Service for drawing before finalizing design. Certified prints available on request. Dimensions are considered as reference only and subject to change. G H H E - -
1 psi (lb-in)/.6 bar (Nm) Standard High Coeff Heat Dissipation Capacity Water Flow (Minimum) air volume/engagement Max WEIGHT and INERTIA Max Slip Disengaged New Worn Speed Speed Total Weight Hub & DP Weight Hub & DP Inertia lb-in Nm lb-in Nm Hp kw gpm /min in in rpm rpm lb (kg) lb (kg) lbft (wr ) (kgm (J)) Size,800,80 5,600 6,5 10 89.5 1 5. 59 1.0 1.0 850 1560 8 (0) 86 (9) 18.8 (0.9) 8 8,0 9,90 1,900 1,650 0 19.0 90.8 69 1.1 1.0 850 1560 5 (6) 1 (8) 8.1 (1.61) 18,000 1,60 16,900 18, 60 68.5 6 16. 8 1. 1.0 850 1560 965 (8) (1) 5. (.) 18 156,00 1,60,600,800 80 58.0 8 181. 88 1. 1.0 850 1560 1,5 (61) (169) 8.1 (.9) 18 6,00 1,160 156,900 1,0 0 01.. 10.8 99.9 60 0 99 (5) 196 (89) 1.9 (.0) 1 5,900 5,50 0,00,90 50 0. 5 0. 190.1 99.9 60 0 1,95 (6) 8 (19) 18 (6.1) 8,500,1,500 9,990 8 60.0 81 06.6 09. 99.9 60 0 1,8 (81) 61 (86) 19 (9.1),0 6,0 55,500 6,0 80 805. 8 08.8 8. 99.9 60 0,1 (969) 850 (86) 9 (1.) 8,00,90 516,00 58,0 650 8. 65 6.1 1. 661.8 5 5,586 (16) (15) (15.8) 16 5,00 85,560 1,00,0 5,60 1,00 969. 10 9.1 1 5.1 661.8 5 5,818 (185) 908 (1) 0 (9.) 6 1,8,600 15,60 1,9,500 168,0 1,950 1,5 195 8. 55 5.8 661.8 5 5 6,99 (85) 1,5 (6) 1, (6.6) 6 1,1,900 16,9 1,9,00 19,60,600 1,99 60 98. 96 6.5 661.8 5 5,00 (5) 1,99 (906) 1,5 (6.) 6 NOTES: *Minimum pressure required to fully release brake. Springs can be removed to lower the minimum release pressure (lower torque ratings will result). Contact WPT Engineering for details. Maximum allowable air pressure is 10 psi (9 bar). The thermal ratings listed require a water flow of one gallon per minute for every hp (one liter per minute for every kw). The thermal ratings listed are based upon a 50 F (8 C) temperature rise between the inlet and outlet. The outlet water temperature should not exceed 150 F (65 C). Maximum water jacket inlet pressure is 5 psi (.1 bar) for the 18 / and 0 psi (.8 bar) for the 6. Contact WPT Engineering for Ethylene Glycol Flow requirements. K 1 / (.5) 1 / (.5) 1 / (.5) 1 / (.5) 19/ 19/ 19/ 19/ COOANT INETS/OUTETS QTY (NPT) 8 1 16 /-1 8 /-1 1 /-1 16 /-1 1-- 8 1-- 1 1-- 16 1-- M N O P AIR INETS 1 1 1 1 /8 /8 /8 /8 1/ (6.5) 5 5/8 (1.9) 9 5/8 (.5) 1 1/ (1.5) 1/ (88.9) 8 5/8 (19.1) 1 /16 (5.0) 16 15/16 (0.) 5 (1.0) 9 (8.6) 1 (0.) 18 9/ (.1) 9/ (.1) 9/ (.1) 9/ (.1) QTY (NPT) HOE CENTER 1.188 1.188 1.188 1.188 1.000 (5.) 1.000 (5.) 1.000 (5.) 1.000 (5.) Q R S MOUNTING HOES QTY 5 /8-16 5 /8-16 5 /8-16 5 /8-16 6 /8-16 6 /8-16 6 /8-16 6 /8-16 18.5 6 1/-1 18.5 6 1/-1 18.5 6 1/-1 18.5 6 1/-1 BOT CIRCE QTY 1 1 1 1 BOT CIRCE (558.80) (558.80) (558.80) (558.80) 8.50 (0.5) 8.50 (0.5) 8.50 (0.5) 8.50 (0.5) (66.80) (66.80) (66.80) (66.80) BORE RANGE MIN MAX / / / / (1.6) (1.6) (1.6) (1.6) 1/8 1/8 1/8 1/8 8 18 18 18 1 16 6 6 6-5 -
WCB/DA WCB/DA SPECIFICATIONs Air-Applied Dynamic Torque Ratings @ 0 psi (lb-in)/ bar (Nm) TORQUE RATINGS Spring-Applied Dynamic Torque Ratings @ 1 psi (lb-in)/.6 bar (Nm)** Release Pressure Spring-Applied Static Torque Ratings @ 1 psi (lb-in)/.6 bar (Nm)** Release Pressure Maximum Dynamic Torque Ratings @ 10 psi (lb-in)/8. bar (Nm)** Release Pressure FRONT K COOANT OUTETS Size* lb-in Nm lb-in Nm lb-in Nm lb-in Nm 8 DA 1WC 0AC 6,0,00 6,800, 6,800, 80,500 9,0 18 DA 1WC 1AC 6,0,00 1,00 16,10 166,000 18,60 150,00 16,980 18 DA WC 0AC 1,00 15,00 1,00 1,0 1,00 1,0 161,0 18,00 18 DA WC 1AC 1,00 15,00 15,00,0 8,900 6,990 0,900 6,090 18 DA WC AC 1,00 15,00 85,500,60,000,5 00,600,960 18 DA WC 0AC 01,00,0 191,500 1,60 191,500 1,60 1,00, 18 DA WC 1AC 01,00,0 88,00,60,900 5,0,00 5,180 518 DA WC AC 01,00,0 58,00 0,90 0,900 5,50 81,00,00 18 DA WC 0AC 68,500 0,8 55,00 8,860 55,00 8,860,00 6,00 1 DA 1WC 0AC 166,00 18,80 1,000 16,0 1,000 16,0 00,0,6 DA 1WC 1AC 166,00 18,80 8,900,190 1,800,90 1,000 8,50 DA WC 0AC,500,680 88,000,50 88,000,50 00,00 5,0 DA WC 1AC,500,680 8,900 8,60 5,900 5,0 51,0 61,10 DA WC AC,500,680 569,800 6,80 66,00,990 68,000,060 DA WC 0AC 500,00 56,50,000 8,8,000 8,8 600,00 6,80 M DA WC 1AC 500,00 56,50 5,900 6,0 619,900 0,00 1,00 8,0 5 DA WC AC 500,00 56,50 1,800 80,650 80,800 91,0 88,0 99,660 COOANT INETS DA WC 0AC 66,000 5,60 56,0 65,090 60,00 0,0 800,00 90,0 16 DA 1WC 0AC 561,00 6,,00 50,190,00 50,190 6,00 6,080 H 6 DA 1WC 1AC 561,00 6, 91,900,10 1,01,000 5,60 1,1,000 19,00 6 DA WC 0AC 1,1,00 16,8 888,500 0,90 888,500 0,90 1,6,900 15,180 6 DA WC 1AC 1,1,00 16,8 1,5,00 15,0 1,65,00 165,560 1,815,500 05,10 6 DA WC AC 1,1,00 16,8 1,85,800 06,90,0,0 0,0,8,0 58,00 6 DA WC 0AC 1,68,600 190,0 1,,800 150,590 1,,800 150,590,00,00 8,80 6 DA WC 1AC 1,68,600 190,0 1,801,00 0,50 1,909,600 15,60,89,000 81,0 56 DA WC AC 1,68,600 190,0,0,0 56,90,86,00 80,90,95,600,10 6 DA WC 0AC,,900 5,60 1,,0 00,90 1,,0 00,90,69,800 0,60 B F A C A B G F B R O N WCB/DA DIMENSIONS inches (mm) A B C D E F G H K T +.000/-0.00 (+.00/-.08) QTY C D COOANT OUTETS N E J 8 18 18 18 1 16 6 6 6 56 (560.55) (560.55) (560.55) (560.55).98 1 (0.5) 1.98 1 (0.5) 1.98 1 (0.5) 1.981 1 (0.5) 1.98 1 (0.5) 1 /8 (9.5) /8 (9.5) /8 (9.5) /8 (9.5) 1/ (1.) 1/ (1.) 1/ (1.) 1/ (1.) 1/ (1.) 1 5/8 (1.) 1 5/8 (1.) 1 5/8 (1.) 1 5/8 (1.) 15 /6 (85.) 18 9/6 (60.8) 1 9/6 (5.9) / (6.9) 16 5/6 (.) 0 9/6 (5.) 5/6 (6.5) 8 5/8 (.1) 1 15/16 (55.) (685.8) 1 /16 (80.9) 5 /16 (906.5) 0 9/6 (1.5) 1/16 (1.) 6 5/8 (168.) 9 5/8 (.5) 1 5/8 (0.) 1/ (88.9) 9 (5.0) 1 /16 (5.0) 16 15/16 (0.) 5 (1.0) (9.) 15 (81.0) 0 1/ (50.) / (5.9) 5 1/8 (10.) 5 1/8 (10.) 5 1/8 (10.) 5 1/8 (10.) /8 (98.) /8 (98.) /8 (98.) /8 (98.) 6 55/6 (1.) 6 55/6 (1.) 6 55/6 (1.) 6 55/6 (1.) 6 55/6 (1.) 15 / (00.1) 18 / (6.) 5 (61.) 1/8 (58.) 1/16 (68.) 1 (8.) 15/16 (88.) (55.5) /8 (695.) / (815.) 15/ (951.) /16 (.9) BACK COOANT INETS 1/" 1 NPT AIR INET - 6 -
Heat Dissipation Capacity Water Flow (minimum) M Coolant Inlets/Outlets air volume/ engagement Max Slip Speed Max Disengaged Speed New Worn Total Weight WEIGHT and INERTIA Hub & DP Weight Hp kw gpm /min qty size (npt) in in rpm rpm lb (kg) lb (kg) Hub & DP Inertia lbft (wr ) (kgm (J)) 10 89.5 1 5. 59 1.0 1.0 850 1,560 8 (8) 8 (8). (0.9) 10 89.5 1 5. 69 1.1 1.0 850 1,560 8 (8) 16 ().8 (1.89) 0 19.0 90.8 8 69 1.1 1.0 850 1,560 1,006 (56) 16 (80) 5. (1.91) 0 19.0 90.8 8 8 1. 1.0 850 1,560 1,01 (60) 65 (10) 68. (.88) 0 19.0 90.8 8 88 1. 1.0 850 1,560 1,1 (518) 9 (15) 90.6 (.8) 60 68.5 6 16. 1 8 1. 1.0 850 1,560 1,0 (55) 9 (1) 68.8 (.90) 60 68.5 6 16. 1 88 1. 1.0 850 1,560 1, (59) 5 (161) 91.0 (.8) 60 68.5 6 16. 1 88 1. 1.0 850 1,560 1,09 (59) 8 (195) (.) 80 5.9 8 181. 16 88 1. 1.0 850 1,560 1, (6) 68 (16) 90.9 (.8) 0 01.. /-1 10.8 99.9 60 1,10 1,00 (1) 0 (9). (.0) 0 01.. /-1 190.1 99.9 60 1,10 1,91 (89) 06 (18) 19 (5.85) 50 0. 5 0. 8 /-1 190.1 99.9 60 1,10,050 (90) 1 (00) 18 (6.) 50 0. 5 0. 8 /-1 09. 99.9 60 1,10,9 (0) 6 () 1 (8.99) 50 0. 5 0. 8 /-1 8. 99.9 60 1,10,50 (5) 98 (6) 09 (1.0) 8 60.0 81 06.6 1 /-1 09. 99.9 60 1,10,91 (85) 66 (9) (9.8) 8 60.0 81 06.6 1 /-1 8. 99.9 60 1,10,608 (8) 8 (8) 86 (1.1) 8 60.0 81 06.6 1 /-1 8. 99.9 60 1,10,856 (195) 1,01 (59) 50 (1.) 1,080 805. 8 08.8 16 /-1 8. 99.9 60 1,10,8 (6) 869 (9) 95 (1.5) 650 8. 65 6.1 1-- 1. 661.8 5 5,86 (105) 9 () 05 (1.9) 650 8. 65 6.1 1-- 1 5.1 661.8 5 5 5,0 (68) 96 (9) 66 (8.5) 1,00 969. 10 9.1 8 1-- 1 5.1 661.8 5 5,0 (1906) 986 () 6 (5.) 1,00 969. 10 9.1 8 1-- 55 5.8 661.8 5 5 6,98 (165) 1,60 (66) 1,06 (.1) 1,00 969. 10 9.1 8 1-- 96 6.5 661.8 5 5 8,15 (08) 1,9 (86) 1, (56.8) 1,950 15 195 8. 1 1-- 55 5.8 661.8 5 5 5,55 (515) 1,9 (61) 915 (8.6) 1,950 15 195 8. 1 1-- 96 6.5 661.8 5 5,66 (5) 1,90 (86) 1,1 (59.5) 1,950 15 195 8. 1 1-- 96 6.5 661.8 5 5 9,01 (6),60 (1) 1,6 (69.),600 199 60 98. 16 1-- 96 6.5 661.8 5 5,981 (60) 1,95 (888) 1,16 (51.) NOTES: *WC=Water Cooled Drive Plates AC=Air Cooled Drive Plates **Minimum pressure required to fully release brake. Springs can be removed to lower the minimum release pressure (lower torque ratings will result). Contact WPT Engineering for details. Maximum allowable air pressure is 10 psi (9 bar). The thermal ratings listed require a water flow of one gallon per minute for every hp (one liter per minute for every kw). The thermal ratings listed are based upon a 50 F (8 C) temperature rise between the inlet and outlet. The outlet water temperature should not exceed 150 F (65 C). Maximum water jacket inlet pressure is 5 psi (.1 bar) for the 18 / and 0 psi (.8 bar) for the 6. Contact WPT Engineering for Ethylene Glycol Flow requirements. J AIR INETS (PER ACTUATOR) (NPT) HOE CENTER 1.188 1.188 1.188 1.188 1.000 (5.0) 1.000 (5.0) 1.000 (5.0) 1.000 (5.0) K MOUNTING HOES (EQUAY SPACED) QTY 0 1 0 1 0 1 0 1 1 1 1 1 0 16 0 16 0 16 0 16 0 16 BOT CIRCE QTY BOT CIRCE 8.50 (0.5) 8.50 (0.5) 8.50 (0.5) 8.50 (0.5) (66.80) (66.80) (66.80) (66.80) (66.80) /8-16 /8-16 /8-16 /8-16 6 /8-16 6 /8-16 6 /8-16 6 /8-16 6 1/-1 6 1/-1 6 1/-1 6 1/-1 6 1/-1 M N BORE RANGE (NPT) /-1 /-1 /-1 /-1 1-- 1-- 1-- 1-- 1-- MIN MAX / / / / (1.6) (1.6) (1.6) (1.6) (1.6) 1/8 1/8 1/8 1/8 1/8 8 18 18 18 1 16 6 6 6 56 NOTES: 1 6 brakes: +0.000/-0.005 (+0.00/-0.1) Maximum bores shown are with a standard square key. Contact WPT Engineering for bore sizes exceeding those shown. Contact Customer Service for drawing before finalizing design. Certified prints available on request. Dimensions are considered as reference only and subject to change. - -
About WPT Since 199! As an international manufacturer of pneumatic, hydraulic and mechanical power take-off s, clutches and brakes for a broad range of industrial and petroleum applications, WPT Power Transmission has been a leader in the power transmission industry, providing superior products with the highest of quality since 199. OEM Dependability. WPT s competitive pricing, lead times and outstanding customer service from our Wichita Falls, Texas facilities help make WPT the OEM supplier of choice for major manufacturers worldwide. Professionally Engineered Quality. Our professional engineering department specializes in designing units that will meet and exceed your unique needs. If you require a special design or application, please contact WPT s engineering department for successful solutions. Worldwide Distribution. WPT s extensive network of international distributors ensures that your product needs will be met when and where you need it. Our distributors are well-supplied with WPT inventory for those instances when demands are critical in order to eliminate major down time. For a WPT distributor in your area, please visit our website at www.wptpower.com. If you would like any further information on WPT Power Transmission or any of the products and services we provide, please contact us at (90) 61-191.