Dual Displacement Motors - BD Series
Technical Characteristics:
Dual Displacement Motors - BD Series
Technical Characteristics:
The BD series is characterized by the sliding bearing which has an
extremely low coefficient of fiction and as a consequence gives very high
starting torque efficiency, and continues to achieve higher than average
mechanical efficiencies both in high and low displacement modes.
The motors are capable of working at low speeds with a high degree
of speed stability. The minimum stable speed depends on the displacement
of the motor. Output torque remains very constant and does not fall away
at very low speeds or under stall or start conditions.
The change of the motor displacement in the BD series is achieved by changing the stroke of the crankshaft: min. 20 bar, max. 30 bar. The change, from high to low displacement and vice versa, may take place dynamically if the hydraulic circuit is capable to avoid cavitation and back pressure.
Ratio between max and min displacement is available on all models as follows: 1:2, 1:3 and 1:4
BD1
Displacement = 99 – 25 / 243 – 61
(cm3 / rev)
Specific Torque = 1.6 – 0.4 / 3.9 – 1.0
(Nm / Bar)
Peak Power = 55 – 42
(kW)
BD2
Displacement = 493 – 246 / 347 – 87
(cm3 / rev)
Specific Torque = 7.8 – 3.9 / 5.5 – 1.4
(Nm / Bar)
Peak Power = 75 – 65
(kW)
BD3
Displacement = 552 – 127 / 917 – 353
(cm3 / rev)
Specific Torque = 8.8 – 2.0 / 14.6 – 5.6
(Nm / Bar)
Peak Power = 95 – 85
(kW)
BD5
Displacement = 957 – 246 / 1848 – 475
(cm3 / rev)
Specific Torque = 15.2 – 3.9 / 29.4 – 7.6
(Nm / Bar)
Peak Power = 170 – 150
(kW)
BD6
Displacement = 1690 – 422 / 3041 – 760
(cm3 / rev)
Specific Torque = 26.9 – 6.7 / 48.4 – 12.2
(Nm / Bar)
Peak Power = 240 – 200
(kW)