Leakproof performance with low backlash. Substantially higher torque at low speed output, yet capable of running at more than twice the speed of the original Float-A-Shaft design. One-piece housing design eliminates leakage. Less than 1 degree of backlash on reversal on input. Shaft speeds up to 1200 RPM. Bores ground to 0.002" total tolerance. Prelubricated and ready for installation.