Bosch Rexroth A6VE107 variable displacement hydraulic motor

The Bosch Rexroth A6VE107 is a high-performance variable displacement axial piston motor. Whether it's powering the tracks of a 50-ton excavator, driving the drum of a road roller, or propelling a telescopic handler, this motor provides the torque, speed control, and efficiency that modern machinery demands.

Application-Specific Performance Analysis

Material Handling and Construction Equipment

The A6VE107 is widely used in:

Telescopic handlers – where precise inching control is required for load placement.

Wheel loaders – especially those using hydrostatic drivelines for counter-rotation capability.

Compact excavators – providing smooth travel and independent track control.

Case example: A 14-ton wheeled excavator equipped with twin A6VE107 motors demonstrated 18% better fuel economy compared to a fixed-displacement motor setup during mixed-cycle trenching operations. The key was the electronic displacement control allowing the engine to operate near its peak efficiency island.

Agricultural and Forestry Machinery

In agriculture, the A6VE107 powers self-propelled sprayers and forage harvesters. These machines require:

Infinitely variable speed from 0 to 40 km/h

High torque at creep speeds for precision spraying

Regenerative braking capability for downhill load handling

Forestry forwarders benefit from the motor’s ability to handle intermittent shock loads when traversing uneven terrain. The integrated pressure relief valves protect against cavitation during rapid directional changes.

Mining and Industrial Drives

Underground mining vehicles demand compact, explosion-proof driveline components. The A6VE107’s robust cast iron housing and through-drive option allow tandem mounting for four-wheel-drive configurations. The motor can operate submerged in oil baths for extended life in dusty environments.

Control Options and Integration

Electronic Proportional Control (EP)

EP control uses a PWM signal from the vehicle ECU to regulate a proportional solenoid, which adjusts the control spool position. This enables:

Ramp functions for smooth acceleration/deceleration

Torque limiting by capping maximum pressure via software

Anti-stall logic – automatically reducing displacement if engine speed drops below threshold

Hydraulic Remote Control (HD)

For simpler systems without CAN bus infrastructure, HD control uses a pilot pressure signal (typically 5–30 bar) to adjust displacement. This is common in retrofit applications or machines where the operator prefers direct hydraulic feedback.

Manual Mechanical Override

A mechanical lever directly connected to the swivel angle mechanism provides fail-safe operation. If electronic or hydraulic controls fail, the operator can manually set displacement to a predefined “limp-home” value.

Maintenance Best Practices for Longevity

Fluid Cleanliness Is Non-Negotiable

The A6VE107 has internal clearances measured in microns. Contamination above ISO 4406 class 20/18/13 accelerates wear on the valve plate, piston slippers, and control spool.

Recommended actions:

Use a 10-micron absolute return filter with bypass indicator

Sample hydraulic oil quarterly; target NAS 1638 class 8 or better

Replace filter elements at 500-hour intervals or when differential pressure exceeds 2.5 bar

Swivel Angle Bearing Inspection

The bearing supporting the swivel cradle experiences cyclical loading. Listen for knocking noises during neutral-to-full displacement transitions. Any roughness indicates bearing fatigue. Typical service life is 8,000–12,000 hours under normal conditions.

Seal Replacement Protocol

Shaft seal leakage is the most common external failure mode. Replace using OEM seals only; aftermarket equivalents often have incorrect Shore hardness, leading to premature failure. Always replace the wiper seal simultaneously.

For more information on the A6VE107 hydraulic motor, please visit https://www.baolilaihydraulic.com/product/.

Specifications

Selection Table

Q1: How do I select the correct displacement range for my application?​

A1: Calculate maximum torque requirement at the wheel/drum, then divide by the maximum allowable motor pressure (350 bar continuous). This gives the required displacement. Add 15% margin for transient peaks.

Q2: Is the A6VE107 compatible with biodegradable hydraulic fluids?​

A2: Yes, but consult Rexroth’s fluid compatibility chart. Some ester-based fluids can swell standard NBR seals. FKM (Viton) seals are recommended for long-term use with synthetic biodegradable oils.

Q3: What is the price and delivery time of the A6VE107 hydraulic motor?

A3: The specific price and delivery time will be provided based on the specific model you provide.

Q4:How to purchase an A6VE107 hydraulic motor?

A4:You can visit https://www.baolilaihydraulic.com/contact/ to contact us and purchase our products through various methods.