Boston Gear 2000 Series helical gear drives and gear motors, 700 Series reducers and 800 Series reducers provide reliable performance on a wide range of wastewater applications including aerators, agitators and mixers, bar screens, sedimentation tanks, grit collectors, biological contactors, separators, screw conveyors and sludge treatment equipment. Centric ORC and WOR overload clutches are designed to protect drivetrain components on many of the same applications by releasing the excess torque buildup, preventing an undesirable repair situation.