CBN-F314 Hydraulic Gear Pump 14 cc/rev 20 MPa

Product Overview

The CBN-F314 is a fixed-displacement external gear pump from the CBN-3 hydraulic gear pump family. Available technical documentation identifies the CBN-F314 with a 14 mL/rev displacement, 20 MPa rated pressure for the F specification, and a 2,000 rpm rated speed.

The CBN-3 family is commonly used in tractors, agricultural machinery and medium-pressure hydraulic systems.

A critical verification note is required: a complete OEM technical manual with a clearly verified manufacturer identity for the exact CBN-F314 ordering code was not found in the publicly indexed manufacturer documentation reviewed. Therefore, this page does not assign an unverified brand to the pump or present third-party maximum-pressure data as official OEM specifications.

Tractor documentation does, however, provide application evidence for the CBN-F314. Public tractor specifications identify CBN-F314 as a hydraulic pump used in implement and three-point hitch systems.

For replacement applications, displacement alone is not sufficient. Rotation direction, shaft configuration, mounting flange, port arrangement and actual system pressure must all be verified.

We can develop replacement units around the original configuration and perform 100% simulated working-condition testing to verify flow, pressure, leakage and operating stability before delivery.

Technical Specifications

CBN-F314

• Model: CBN-F314
• Series: CBN-3 Hydraulic Gear Pump
• Pump Type: Fixed-displacement external gear pump
• Theoretical Displacement: 14 mL/rev (14 cm³/rev)
• Rated Pressure: 20 MPa (200 bar)
• Rated Speed: 2,000 rpm
• Theoretical Flow at 2,000 rpm: approximately 28 L/min
• Minimum Speed: Approximately 900 rpm for the corresponding CBN-3 size range in the published technical data
• Working Fluid: Hydraulic oil
• Operating Temperature: Approximately -20°C to +80°C
• Recommended Filtration: ≤25 μm
• Volumetric Efficiency: ≥90% in the published CBN-3 rated-condition data
• Control Method: Fixed displacement
• Typical Application: Tractor and agricultural hydraulic systems
• Peak Pressure: Not treated as an independent official CBN-F314 parameter because the currently verifiable technical source does not establish a dedicated OEM peak rating for this exact model.
• Weight: No consistent OEM-confirmed value was found in the reviewed public technical data; therefore, no estimated weight is presented.

The available CBN-3 technical documentation distinguishes E and F pressure grades. CBN-E314 is listed at 16 MPa, while CBN-F314 is listed at 20 MPa.

Theoretical Flow Reference

The theoretical flow can be calculated using:

Q = Vg × n / 1000

For a 14 cm³/rev displacement:

• 1000 rpm: 14 L/min
• 1500 rpm: 21 L/min
• 2000 rpm: 28 L/min
• 2500 rpm: 35 L/min
• 3000 rpm: 42 L/min

These are theoretical displacement-flow figures. Actual delivered flow depends on volumetric efficiency, operating pressure, viscosity, temperature and inlet conditions.

Key Technical Advantages

1. Stable 14 mL/rev Displacement

With a theoretical displacement of 14 cm³/rev, the CBN-F314 produces approximately 28 L/min of theoretical flow at 2,000 rpm. This makes it suitable for hydraulic lifting and auxiliary circuits where predictable fixed flow is required.

2. 20 MPa F-Class Pressure Rating

The CBN-3 documentation distinguishes the F and E pressure classes. The F version is rated at 20 MPa, while the E version is rated at 16 MPa. The F314 is therefore intended for the higher pressure class within this product family.

3. Floating-Bearing Axial Compensation

Published CBN-3 technical material describes a floating bushing/side-plate arrangement for axial pressure compensation. The engineering purpose is to maintain controlled gear-end clearances as pressure changes, helping limit internal leakage and preserve volumetric efficiency.

4. Integrated Aluminium-Alloy Housing

The CBN-3 design is described as using a one-piece aluminium-alloy die-cast housing. This construction can provide a useful combination of low mass, structural rigidity and manufacturing consistency for mobile hydraulic equipment.

5. Compact External Gear Architecture

The external gear configuration uses a relatively straightforward mechanical architecture. This benefits maintenance and replacement work where compact dimensions, simple service procedures and matching mechanical interfaces are important.

6. Proven Tractor Application

CBN-F314 is documented in agricultural machinery applications rather than being limited to generic supplier listings. Public tractor documentation identifies it as a hydraulic pump used for implement and three-point-hitch hydraulic functions.

Application Areas

Typical applications include:

• Agricultural tractors
• Utility tractors
• Three-point hitch systems
• Tractor auxiliary hydraulic circuits
• Agricultural implements
• Mobile hydraulic power systems
• Medium-pressure industrial hydraulic equipment

Public tractor specifications specifically document CBN-F314 in hydraulic implement systems.

Related CBN Model Identification

The original title also contains:

• CBN-E314
• CBN-E308
• CBN-F308
• CBN-F314

These models should not share a single specification set.

The available CBN-3 technical documentation identifies:

• CBN-E308: 8 mL/rev, E-class rated pressure 16 MPa.
• CBN-E314: 14 mL/rev, E-class rated pressure 16 MPa.
• CBN-F308: 8 mL/rev, F-class rated pressure 20 MPa.
• CBN-F314: 14 mL/rev, F-class rated pressure 20 MPa.

Therefore, the E/F designation represents a meaningful pressure-class difference, not merely a marketing suffix.

Expert Maintenance Tips

1. Confirm Rotation Before Installation

Gear-pump rotation determines the relationship between the suction and pressure chambers. Always confirm rotation from the original nameplate, shaft-end viewing convention and actual hydraulic piping before installing a replacement CBN-F314.

2. Protect the Suction Line

As pump speed increases, the required inlet flow increases accordingly. An undersized suction line, clogged strainer or excessive inlet restriction can cause cavitation, noise and loss of delivered flow.

3. Do Not Treat 20 MPa as an Unlimited Operating Point

The published 20 MPa rating is the F-class rated pressure. It does not mean that 20 MPa is permissible under every combination of temperature, speed, viscosity and duty cycle. System relief-valve settings and available drive power must also be checked.

4. Maintain Fluid Cleanliness

The available CBN-3 documentation specifies filtration around ≤25 μm. Contamination can accelerate wear of gears, bearings and axial-compensation surfaces, increasing internal leakage and reducing pressure-building capability.

5. Verify Shaft and Flange Alignment

In tractor installations the pump may be driven directly from the engine, transmission or an intermediate drive. Misalignment can increase shaft and bearing loads and accelerate seal wear. Verify shaft dimensions and mounting geometry before installation.

6. Verify the Complete Replacement Configuration

For a genuine replacement, do not order solely from the term “14 cc gear pump.” Confirm:

• E or F pressure grade
• 14 mL/rev displacement
• Rotation direction
• Drive shaft configuration
• Mounting flange
• Hydraulic ports
• Installation dimensions
• Actual system pressure
• Drive speed

Only when the mechanical interface and hydraulic operating point are both matched can reliable in-place interchangeability be achieved.