A6VE170EP600P000B/71MWV0S2A21IV-0 Rexroth Hydraulic Motor 170cc 500bar

Product Overview

The A6VE series is a classic representative of the Bosch Rexroth A6V family of bent-axis variable displacement axial piston motors. The A6VE is a plug-in variable motor equipped with an axial tapered piston rotary group featuring a proven bent-axis design. This motor series is specifically designed for direct integration into mechanical gearboxes, with the mounting flange recessed into the center of the housing for an exceptionally compact structure.

The A6VE series is built on the Series 71 platform, offering displacements from 60 cc/rev to 215 cc/rev, suitable for open and closed circuit hydrostatic drives. A6VE motors feature a wide control range (swivelable to zero displacement) , delivering high torque at high speeds with excellent slow-running characteristics. EP control (electro-proportional) enables stepless displacement adjustment via electrical signals for precise speed and torque control.

Our product provides a fully interchangeable direct replacement for the original Bosch Rexroth A6VE series motor, with identical mounting dimensions, port specifications, and shaft configurations. Every unit undergoes 100% simulated duty-cycle testing—performance-validated under rated pressure, peak pressure, and full speed range to ensure volumetric efficiency, mechanical efficiency, torque output, noise levels, and thermal characteristics meet or exceed original OEM specifications.

Technical Specifications

The following technical data covers the A6VE 60/85/115/170 displacement sizes. All data is compiled from Rexroth official technical documentation.

A6VE170EP600P000B/71MWV0S2A21IV-0

• Full Model: A6VE170EP600P000B/71MWV0S2A21IV-0

• Material Number: R902261206 / R902280938

• Brand: Bosch Rexroth

• Series/Version: Series 71

• Type: Bent-Axis Variable Displacement Axial Piston Motor (Plug-in)

• Max. Displacement (Vg max): 170 cm³/rev

• Nominal Pressure (pnom): 450 bar

• Maximum Pressure (pmax): 500 bar

• Max. Speed (nmax): 3,600 rpm

• Direction of Rotation: Bi-Rotational

• Control Type: EP600 = Electro-Proportional Control (600 kPa pilot pressure)

• Protection Class: IP65

• Mounting: Flange Mount (Plug-in)

• Shaft: Splined Shaft (DIN 5480)

• Housing Material: High-Strength Cast Iron

• Weight: Approx. 60–65 kg

A6VE115

• Model: A6VE115

• Series/Version: Series 71

• Max. Displacement: 115 cm³/rev

• Min. Displacement: 30 cm³/rev

• Nominal Pressure: 450 bar

• Maximum Pressure: 500 bar

• Max. Flow: 410 L/min

• Weight: Approx. 46–52 kg

A6VE085

• Model: A6VE085

• Series/Version: Series 71

• Max. Displacement: 85 cm³/rev

• Nominal Pressure: 450 bar

• Maximum Pressure: 500 bar

• Max. Flow: 332 L/min

• Weight: Approx. 36–45 kg

A6VE060

• Model: A6VE060

• Series/Version: Series 71

• Max. Displacement: 60–62 cm³/rev

• Nominal Pressure: 450 bar

• Maximum Pressure: 500 bar

• Max. Speed: 4,450 rpm

• Max. Flow: 275 L/min

• Torque @ 450 bar: 444 Nm

• Weight: Approx. 28–37 kg

Key Technical Advantages

1. Bent-Axis Design with Axial Tapered Piston Rotary Group
The A6VE series features Rexroth’s classic bent-axis design with an axial tapered piston rotary group. This design delivers exceptional efficiency at any speed or operating pressure, combined with outstanding impact resistance and heavy-load capacity.

2. Plug-in Design for Direct Gearbox Integration
The defining feature of the A6VE series is its plug-in design. With the mounting flange recessed into the center of the housing, the motor can be slid directly into mechanical gearboxes without requiring additional connection flanges or adapters. This significantly reduces axial installation dimensions, simplifies system architecture, and improves overall power density.

3. Wide Control Range & Excellent Low-Speed Characteristics
A6VE motors feature a wide control range (swivelable to zero displacement) , delivering high torque at high speeds while maintaining excellent slow-running characteristics. EP electro-proportional control (as featured in A6VE170EP600) enables stepless displacement adjustment via electrical signals for precise speed and torque control.

4. Ultra-High Pressure & High Speed Capability
The A6VE series delivers nominal pressure of 450 bar and maximum pressure of 500 bar. The A6VE060 reaches speeds of 4,450 rpm, while the A6VE170 reaches 3,600 rpm. The combination of high pressure and high speed provides exceptional power density in a compact package.

5. Suitable for Open & Closed Circuits
A6VE motors are suitable for open and closed circuit hydrostatic drives. Optional attached flushing and boost-pressure valves and integrated or attached counterbalance valves are available. Complete units are ready-assembled and tested—easy to install, simply plug into the mechanical gearbox.

Application Areas

The A6VE series motors are widely used in travel drives and working function drives across mobile and industrial equipment:

• Construction Equipment: Excavator swing drives and travel drives

• Road Construction Equipment: Roller vibratory drum drives, pavers

• Agricultural Machinery: Large combine harvester travel drives (e.g., Tigercat 850)

• Mining Equipment: Underground mining vehicle and drill rig rotary drives

• Marine & Offshore: Marine deck cranes, winch drives, logging self-propelled hydraulic hoists (ПКС-5Г)

• Lifting Equipment: Mobile crane swing and winch drives

• Material Handling: Forklift and telescopic handler travel drives

Expert Maintenance Tips

1. Shaft seals and all O-rings must be replaced after every disassembly.

2. Pre-lubricate all moving parts with clean hydraulic fluid before assembly.

3. Purge all air from the motor housing before initial start-up—ensure the case drain line returns directly to the reservoir with the outlet below the oil level to prevent air entrapment and bearing starvation.

4. Monitor case drain flow regularly—an abnormal increase indicates potential piston, port plate, or cylinder barrel wear.

5. Recommended maximum system operating temperature should not exceed 80°C to ensure seal and fluid service life.

6. Ensure hydraulic system filtration meets Rexroth specifications (recommended β₁₀ ≥ 75, ISO 4406 cleanliness code不低于 18/16/13) to maximize motor service life.

7. The A6VE is a plug-in motor—ensure the gearbox bore and housing fit tolerances comply with Rexroth installation specifications.

8. Weight ranges from 28–65 kg—use proper lifting equipment during installation and removal to prevent personal injury or component damage.