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42 Maritime Reporter & Engineering News Thordon Introduces New Bearing Thordon Bearings introduced ThorPlas, a new proprietary engineered (non-elastomer) thermoplastic bearing. ThorPlas expands the range of applica- tions where Thordon bearings can be specified. The manufacturer says that ThorPlas® offers these advantages: Greasing is eliminated including the labor, cost and potential pollution source Increased strength and rigidity allowing working pressures in an inter- ference fit bearing up to 31MPa (4500 psi) Internal lubricants formulated into ThorPlas reduce friction, resulting in smooth operation without lubrication Operates above and below the water line ThorPlas machines easily, and dust- free, to suit required dimensions Installation is quick and easy using freeze fit techniques. Thordon has been test marketing ThorPlas since 2003 and has many installations in operation and working successfully. Typical marine applica- tions include steering gear tiller arm and jockey-bar linkage bushings, fairleads and rope rollers, self unloader booms, cranes and hoists, barge trolleys, davits and gantrys, door and ramp hinge bush- ings and hydraulic cylinder rod ends. Circle 8 on Reader Service Card Markey Delivers Electric Hawser Winches for Tugs Markey Machinery Company of delivered two 100 hp type DESF-48 type electric hawser winches for installation on a pair of 30 m, 4475 kW tugs currently under construction at Washburn & Doughty for Crescent Towing and Moran Towing. The new design incorporates all the same features as a larger unit featured on Crowley's Response, but in a smaller package and with a reduced horsepower requirement. Markey's new DESF-48 design is built for up to 230 m of 76mm UHMWPE- type soft-line, includes a heavy-duty levelwind and a three-speed automatic transmission to provide ratings from 166 Tm line-pull to 183 m/min. line-speed. Also featured in this new design is a water-cooled slip-brake with capacity to dissipate up to 400 kW in braking ener- gy. Controls in the wheelhouse include a display for all parameters of winch and drive-system operation including active display of line-tension in all modes of operation. Circle 9 on Reader Service Card IMO AB Increases Pump Flow Limit IMO AB has increased the flow rate of the ACE-type pump by 20 percent, to above 11 cu. m./hr. IMO AB ACE pump type is one of the most commonly used displacement pumps for pumping oil in marine and Circle 249 on Reader Service Card New Products ThorPlas self loader boom bushing at Grand Bahamas Shipyard. MR FEBRUARY2006 #6 (41-48).qxd 2/1/2006 8:13 PM Page 2
