A6VM160 Rexroth Axial Piston Motor Variable HD2E

Product Overview:

The A6VM160 (including A6VM160HD2E/63W-VAB020B) is a Bosch Rexroth bent-axis axial piston variable displacement hydraulic motor (Series 63). Displacement is infinitely adjustable from Vg max to Vg min = 0 for open and closed circuits. It delivers high starting efficiency, a wide control range, high power density and long service life. Precision-machined and 100% tested under simulated operating conditions, it offers full interchangeability as a direct replacement for original Rexroth A6VM160 motors in mobile and stationary high-speed, high-torque hydrostatic drive applications.

Technical Specifications 

• Models: A6VM160 / A6VM160HD2E/63W-VAB020B (Series 63)
• Geometric displacement (Vg max): 160 cm³/rev
• Minimum displacement (Vg min): 0 cm³/rev (infinitely variable to zero)
• Nominal pressure: 400 bar
• Maximum pressure: 450 bar
• Maximum speed (at Vg max): 3100 rpm
• Maximum speed (at Vg < Vg x): 4900 rpm
• Maximum inlet flow (at nnom and Vg max): 496 L/min
• Torque (at Vg max, Δp = 400 bar): 1019 Nm
• Approximate weight: 64 kg
• Control: Variable displacement (HD2E hydraulic proportional control with ΔpSt = 25 bar); bent-axis design; suitable for open and closed circuits

(Data from official Bosch Rexroth technical data sheets RE 91604 series; theoretical values without efficiency and tolerances.)

Key Technical Advantages

1. Bent-axis design with continuous variable displacement down to zero enables a truly wide control range, simultaneously meeting high-speed and high-torque requirements.
2. High starting efficiency and excellent low-speed behavior deliver high breakaway torque and smooth operation, ideal for frequent start-stop and precise control applications.
3. High power density combined with a robust structure supports very high rotational speeds; precision machining of housing and rotary group ensures low leakage and high volumetric efficiency.
4. HD2E hydraulic proportional control provides precise response; optional flushing/boost valves available; output shaft tolerates radial/axial loads; full interchangeability with original units.

Application Areas:

Construction machinery travel and swing drives, cranes, drilling rigs, agricultural machinery, marine propulsion, industrial stationary hydraulic systems and other open/closed-circuit applications requiring variable axial piston motors.

Expert Maintenance Tips:

Ensure proper flange and shaft alignment during installation to avoid additional radial loads. Use HLP mineral oil conforming to DIN 51524 and maintain fluid cleanliness. Verify case drain lines are unrestricted before first operation to prevent excessive case pressure. Periodically inspect seals and bearings; avoid prolonged operation above rated pressure or speed. Replace seals with OEM-specification parts and perform low-pressure break-in after service before returning to rated duty. Refer to official Rexroth ordering codes and dimensional drawings for specific HD2E control settings and mounting details.