F11-010-MB-CN-K-000 Parker Hydraulic Motor 10cc 420 bar

Product Overview

The F11-010-MB-CN-K-000 is a bent-axis axial piston fixed displacement motor built on the Parker F11 platform, in the 10cc displacement size. The F11 series is Parker’s well-proven heavy-duty bent-axis fixed displacement motor/pump series, originating from the Swedish VOAC (Volvo Hydraulics) line acquired by Parker Hannifin in the 1990s. The series features a unique spherical piston design and gear synchronization structure for efficient, reliable power transmission in both open and closed loop circuits.

The F11-010 offers a displacement of 9.8 cm³/rev, maximum intermittent working pressure of 420 bar (6,090 psi), maximum continuous working pressure of 350 bar (5,075 psi), maximum continuous speed of 10,200 rpm, and maximum intermittent speed of 11,200 rpm. The F11 series offers working pressures up to 420 bar and speeds up to 14,000 rpm, with a 40° angle between shaft and cylinder barrel for a very compact, lightweight, high power density design. The model code F11-010-MB-CN-K-000 decodes as follows: F11 designates the bent-axis fixed motor series, 010 is the displacement size (9.8 cm³/rev), MB is the shaft and mounting configuration code, CN is the control and port type code, K is the seal type code (NBR), and 000 is the standard tail configuration code.

Engineered as a form-fit-function replacement for original Parker F11-010 series motors, this model maintains identical mounting flange dimensions (CETOP flange), shaft specifications, and port locations, enabling drop-in interchangeability without modification to the host machine’s mounting interface or hydraulic circuit. Each unit undergoes 100% simulated load testing prior to shipment, validating output torque and volumetric efficiency against original specifications.

Technical Specifications 

• Model: F11-010-MB-CN-K-000

• Part Number: 3703603

• Series: Parker F11 Series Bent-Axis Fixed Displacement Motor/Pump (from VOAC product line)

• Motor Type: Bent-axis axial piston fixed displacement motor

• Design Feature: 40° bent-axis configuration, spherical pistons, laminated piston rings, gear synchronization, double tapered roller bearings

• Displacement: 9.8 cm³/rev (0.6 in³/rev)

• Maximum Intermittent Pressure: 420 bar (6,090 psi)

• Maximum Continuous Pressure: 350 bar (5,075 psi)

• Maximum Continuous Speed: 10,200 rpm

• Maximum Intermittent Speed: 11,200 rpm

• Maximum Flow (@ rated speed): 26 gpm / 98.4 L/min

• Maximum Torque (@350 bar): Approx. 50 N·m

• Power: Approx. 20 kW

• Mounting Flange: CETOP flange

• Shaft Type: Metric keyed

• Port Connections: BSP threaded

• Seal Material: NBR (low pressure)

• Radial Load Capacity: 400 kg (880 lb)

• Maximum Noise Level: 80 dBA

• Fluid Temperature Range: −40°C to +115°C

• Optimum Viscosity Range: 8–1000 cSt

• Weight (approx.): 6.5 kg

• Circuit: Open circuit / Closed circuit

Key Technical Advantages

1. Spherical Piston Design with Thermal Shock Resistance

The F11 series employs Parker’s unique spherical piston concept, where pistons transmit force through spherical contact with the drive plate, providing large contact area and uniform stress distribution. This spherical piston design gives the motor excellent thermal shock resistance, maintaining stable sealing performance and volumetric efficiency under rapid fluid temperature changes or alternating high-low temperature conditions. Laminated piston rings offer important advantages such as low internal leakage and thermal shock resistance. The 40° bent-axis configuration achieves high power density within a compact envelope, with the F11-010 achieving 420 bar peak pressure at 9.8 cm³/rev displacement.

2. Gear Synchronization and Double Tapered Bearing Reliability

The F11 series features a well-proven gear synchronization mechanism, with a ring gear on the shaft meshing with the cylinder barrel teeth to ensure precise synchronization between the drive shaft and barrel, making the motor highly tolerant to high G forces and torsional vibrations. The double tapered roller bearing configuration enables the motor to withstand radial loads up to 400 kg and considerable axial loads, making it suitable for direct belt, gear, or sprocket drives without additional bearing support structures.

3. High-Speed Capability with Low Noise Operation

Thanks to lightweight pistons and a compact rotating component design, the F11-010 withstands extremely high speeds — maximum intermittent speed up to 11,200 rpm and continuous operating speed up to 10,200 rpm. Lightweight pistons reduce reciprocating inertia forces, lowering mechanical vibration and noise levels at high speeds, with a maximum noise level of 80 dBA. This characteristic makes the F11-010 particularly suitable for chain saw drives, cooling fan drives, and other high-speed applications.

4. Compact Structure with Multi-Standard Mounting Compatibility

The F11 series motor’s shaft end and mounting flange conform to ISO, SAE, and CETOP standards, enabling easy integration into various hydraulic systems. The F11-010-MB-CN-K-000 features CETOP flange mounting, BSP threaded ports, and a metric keyed shaft. The motor’s simple construction and maintenance-free design, with very few moving parts, deliver very reliable performance and long service life in both open and closed loop circuits.

Application Areas

• Forestry Machinery: Chain saw drives, feller bunchers, skidders, forwarders

• Construction Machinery: Skid steer loaders, mowers, cutters

• Crane Machinery: Deck cranes, constant tension winches, hatch covers

• Oil & Gas Equipment: Nitrogen pumpers, frac trucks, coil tubing units

• Industrial Applications: Cooling fan drives, dust collectors, aircraft test stands

• Municipal Equipment: Road sweepers, municipal service vehicles

Expert Maintenance Tips

1. Shaft Alignment Requirements: During installation, ensure the coaxiality deviation between the motor shaft and drive-end coupling does not exceed 0.05 mm. Although the F11 series utilizes double tapered roller bearings capable of withstanding substantial radial loads, excessive radial forces will accelerate bearing wear and shaft seal aging. When installing the metric keyed shaft, ensure key-to-keyway fit clearances conform to standard requirements.

2. Hydraulic Fluid Cleanliness Control: Maintain hydraulic fluid cleanliness at ISO 20/18/13 or better. Replace hydraulic fluid and filter elements every 1,000 operating hours or annually, with filter element filtration accuracy no less than 10 μm. Contaminant particles accelerate spherical piston pair and port plate wear, degrading volumetric efficiency.

3. Viscosity and Temperature Management: The optimum viscosity range is 8–1000 cSt. Hydraulic fluid temperature should not exceed +115°C during continuous duty, with a minimum of −40°C. If external housing temperature rises abnormally, check for system pressure overload or sudden increases in case drain leakage.

4. Initial Startup Preparation: Fill the motor housing with clean hydraulic fluid during initial installation to prevent dry friction on piston pairs during startup. The drain port must be connected separately to the reservoir with back pressure not exceeding 0.5 MPa.

5. Restart After Extended Storage: For motors stored over 6 months, manually rotate the shaft 2–3 revolutions to confirm free rotation, then run at low pressure (10 MPa) under no load for 10 minutes, confirming normal case temperature and leakage before gradually applying load.