2-speed Hydraulic Variable Displacement BD1 BD2 BD3 BD5 BD6 SAI BD motor
Displacements Available: 6.1 to 112.7 cu.-in./rev. (full displacement)
Max-Min Displacement Ratio from 1.2 to 6:1
Maximum Speed 3500 rpm
Peak Power: 322 hp
94% Starting and running torque
99% Volumetric efficiency
Sai BD Series Dual Displacement Motor is also based off the GM Series but incorporates the innovative central bearing.
The shift from one displacement to the other is achieved by pilot pressure acting on a crank shaft eccentric. This ensures a smooth transition when shifting from one speed to the other.
BD Series also tolerate freewheeling in full cavitation as with other models. If run as a pump they can also reach full speed in low displacement.
The motors are capable of working at low speeds with a high degree of speed stability.
Output torque remains constant and does not fall away at very low speeds, on start up or in stall conditions. BD2 offers 100% to 50 % speed change ratio while BD1 offers 100 % to 25%.