Cotta SN1995 High-Speed Transmission
Model SN1995 is a foot mounted high speed coaxial transmission designed for testing aircraft components. An output pad for a constant speed drive and for a generator are located on opposite sides of the transmission (co-axial). There are two output pads on the same side, a high speed and a low speed pad. A lock up adapter is furnished for testing generators without CSD’s.
CAPACITY: 300HP at 650 to 2400 RPM input. 330 HP at same input for 10 minutes per hour. 450 HP at same input for 30 seconds per 1/2 hour
MAXIMUM OUTPUT SPEEDS: 15,600 RPM low speed pad. 35,300 RPM high speed pad.
RATIOS: HIGH SPEED: 14.685, 11.329, 12.790, 12.316, 15.965 LOW SPEED: 6.500, 5.664, 6.395, 6.156, 6.340
INPUT SHAFT: 3.250” diameter with 3/4 X 3/8 keyway.
DIRECTION OF ROTATION: Bi-rotational
CENTER DISTANCE: 20.67”
MAXIMUM ACCEL/DECEL RATE: 2000 RPM/second
LUBRICATION REQUIREMENT: Sump is in case. Pressure lubricated with spray on gears and bearings. Use AGMA #1 oil.
COOLING: Water to oil heat exchanger with modulating water control valve.
ACCESSORIES: Temperature/pressure switch. 60 tooth gear for each output for speed pick up.
FINISH: Two coats gray polyurethane enamel.
WEIGHT: 2550 lbs.