CBN-G316-CFHR YTO X904 Tractor Gear Pump 16cc 250 bar

Product Overview

The CBN-G306, CBN-G314, CBN-G315, CBN-G320, CBN-G325, as well as CBN-G316-CFHR and CBN-G320-CFHR series gear pumps are high-performance medium-high pressure external gear pumps from the mature CBN-G Series platform. These pumps are specifically designed for agricultural machinery, construction equipment, and industrial hydraulic systems, delivering efficient hydraulic power for steering, lifting, and implement systems in tractors, combine harvesters, and loaders.

The CBN-G Series features high-precision gears and optimized hydraulic structure design, offering high volumetric efficiency, low noise, and long service life. The CFHR suffix indicates a Long Shaft configuration, specifically designed for YTO X904 and Dongfanghong series tractors requiring extended shaft drive applications.

Key Interchangeability Advantage: Our CBN-G series gear pumps are manufactured to strict CBN-G original design specifications, ensuring 100% direct interchangeability with original units. All mounting interfaces, flange dimensions, shaft configurations, and port positions are identical to the original product – directly replacing original pumps on YTO X904, Dongfanghong, Foton Lovol, John Deere, and numerous other tractor models with no modifications required. Every pump undergoes 100% factory performance testing under simulated operating conditions, guaranteeing plug-and-play reliability with zero performance deviation.

Model Code Breakdown (based on CBN-G Series designation rules):

• CBN = Series: Medium-High Pressure External Gear Pump

• G = Pressure Grade: 25 MPa (peak up to 30 MPa)

• 306 / 314 / 315 / 316 / 320 / 325 = Displacement code: 6 / 14 / 15 / 16 / 20 / 25 cm³/rev respectively

• CFHR = Configuration suffix: Long Shaft with specific configuration

Technical Specifications

CBN-G Series – General Specifications

• Product Series: CBN-G Series Medium-High Pressure External Gear Pump

• Pressure Grade: 25 MPa

• Maximum Peak Pressure: 30 MPa

• Gear Module: m=3

• Housing Material: High-strength aluminum alloy or cast iron

• Gear Material: High-strength alloy steel with induction hardening

• Bearing Type: Plain bearings (floating bushing design)

• Drive Type: Flange / Shaft extension

• Mounting: Flange mounting

• Recommended Fluid: Mineral-based hydraulic oil (HM46/HM68)

• Operating Temperature Range: -20°C to +80°C

• Volumetric Efficiency: ≥ 89 – 92% (model-dependent)

CBN-G306

• Displacement: 6.0 cm³/rev

• Rated Pressure: 16 MPa

• Maximum Pressure: 20 MPa

• Rated Speed: 1500 – 2000 r/min

• Maximum Speed: 2500 – 3000 r/min

• Theoretical Flow: 6 L/min

• Input Torque: Approx. 10 N·m

• Weight: Approx. 3.2 kg

CBN-G314 / CBN-G314L

• Displacement: 14.0 cm³/rev

• Rated Pressure: 16 – 25 MPa

• Maximum Pressure: 20 – 25 MPa

• Rated Speed: 1500 – 2000 r/min

• Maximum Speed: 2500 – 2800 r/min

• Spline Specification: 11-tooth involute spline or 4-tooth

CBN-G315

• Displacement: 15.0 cm³/rev (based on model code)

• Pressure Grade: 25 MPa (continuous) / 30 MPa (peak)

• Speed Range: 600 – 3000 r/min

CBN-G316 / CBN-G316-CFHR

• Displacement: 16.0 cm³/rev

• Rated Pressure: 16 – 25 MPa

• Maximum Pressure: 20 – 25 MPa

• Rated Speed: 1500 – 2000 r/min

• Maximum Speed: 2500 – 2800 r/min

• Volumetric Efficiency: ≥ 92%

• Drive Type: Flange / Shaft extension

• Spline Specification: 11-tooth involute spline

• CFHR Feature: Long Shaft design for YTO X904 tractors

CBN-G320 / CBN-G320-CFHR

• Displacement: 20.0 cm³/rev

• Rated Pressure: 16 – 25 MPa

• Maximum Pressure: 20 – 25 MPa

• Rated Speed: 1500 – 1800 r/min

• Maximum Speed: 2500 r/min

• Volumetric Efficiency: ≥ 92%

• Drive Type: Flange / Shaft extension

• Spline Specification: 11-tooth involute spline

• CFHR Feature: Long Shaft design for YTO X904 tractors

CBN-G325

• Displacement: 25.0 cm³/rev

• Rated Pressure: 16 – 25 MPa

• Maximum Pressure: 20 – 25 MPa

• Rated Speed: 1500 – 1800 r/min

• Maximum Speed: 2500 r/min

Key Technical Advantages

1. Long Shaft Design (CFHR), Optimized for Agricultural Tractors

The CBN-G316-CFHR and CBN-G320-CFHR feature a Long Shaft design, specifically engineered for YTO X904, X804, X704, and other wheeled tractors. The extended shaft effectively addresses installation distance challenges between pump and engine in agricultural machinery, ensuring reliable power transmission.

2. High-Precision Gears with Floating Bushing Compensation for High Efficiency

Featuring high-precision gears and floating bushing clearance compensation technology that effectively suppresses end-face leakage, ensuring high volumetric efficiency. Gears are manufactured from high-strength alloy steel with precision carburizing or nitriding heat treatment for extremely high surface hardness. Optimized tooth profiles effectively reduce pressure pulsation for smooth, low-noise operation.

3. High-Strength Aluminum/Cast Iron Housing – Lightweight with High Strength

CBN-G Series pump bodies are manufactured from high-strength aluminum alloy (cast iron optional) using an extrusion forming process, delivering 30% higher tensile strength than conventional low-pressure cast housings with elongation increased to 7% – resisting cracking under instantaneous high pressure.

4. 11-Tooth Spline Drive with High Torque Capacity

Featuring an 11-tooth involute spline connection (compliant with GB/T 3478 or agricultural machinery standards), ensuring smooth power transmission and high torque capacity. The spline drive design is particularly suitable for high-torque agricultural machinery hydraulic systems.

5. Wide Displacement Coverage for Flexible Agricultural Machinery Compatibility

The CBN-G Series offers displacements from 6 to 25 cm³/rev (G306 / G314 / G315 / G316 / G320 / G325), covering everything from light to heavy agricultural machinery. Compatible with YTO X904, Dongfanghong, Foton Lovol, John Deere, and dozens of other tractor models.

Application Areas

• YTO X904 Wheeled Tractor: CBN-G316-CFHR / CBN-G320-CFHR specifically designed for X904 and platform-mates (X704, X804, LX954, NLX1024, etc.)

• Dongfanghong Tractors: Hydraulic steering, lifting, and travel systems for Dongfanghong series tractors

• Combine Harvesters: DON series, Rostselmash, and other combine harvester hydraulic systems

• Loaders and Construction Equipment: Working implement hydraulic circuits for small loaders and forklifts

• Agricultural Implements: Hydraulic systems for transplanters, harvesters, and rotary tillers

• Industrial Hydraulic Power Units: Stationary hydraulic power units

Expert Maintenance Tips

1. Model Confirmation and Selection

• Complete CBN-G series model should include: Series (CBN) + Pressure Grade (G) + Displacement Code (306/314/316/320/325) + Configuration Suffix (CFHR for long shaft) .

• CFHR suffix indicates Long Shaft design specifically for YTO X904 and similar long-wheelbase tractors. Verify original shaft type and length during selection.

• Pressure ratings vary by model: G314/G316 rated 16 MPa; G320/G325 rated 20 MPa (some models up to 25 MPa).

2. Pre-Installation Checks

• CBN-G Series pumps have a fixed rotation direction – verify matches system drive direction before installation.

• Check 11-tooth involute spline fit and pump shaft concentricity – deviation should be ≤ 0.05 mm to prevent premature wear from eccentric loading.

• Never use hammer-driven installation – always use proper tools.

3. First Start-Up & Oil Priming

• Prime the pump housing with clean hydraulic oil before first start-up; ensure suction line is fully filled – never run dry.

• Recommended fluid: HM46 / HM68 anti-wear hydraulic oil, operating temperature 10°C – 80°C.

• Run no-load for 3-5 minutes on first start-up; check for leaks and abnormal noise before gradually loading.

• Suction height not exceeding 0.5 meters to prevent cavitation from excessive suction resistance.

4. Filtration & Fluid Cleanliness

• Maintain hydraulic fluid cleanliness at NAS 1638 Class 8 or better; install 10 μm fine filter and replace regularly.

• Replace suction filter and hydraulic oil after 500 hours of initial operation; perform comprehensive maintenance every 2000 hours thereafter.

5. Operating Monitoring

• Continuous operating pressure must not exceed rated pressure for each model; avoid prolonged operation at maximum pressure.

• If abnormal noise or pressure fluctuation occurs, first check suction lines for leakage or blockage.

• Regularly check torque on pump and piping connection bolts to prevent loosening from vibration.