AZPFFF-11-014/004/008LFP202020PB-S0195 Rexroth Hydraulic Gear Pump 14/4/8cc 250bar

Product Overview

The AZPFF and AZPFFF Series are F-type high-performance external gear pumps within the Bosch Rexroth AZP platform. AZPFF represents the tandem pump (dual pump) configuration, while AZPFFF represents the triple pump configuration. Based on the AZPF Platform F series, these pumps cover displacements from 004 to 028 (4 to 28 cm³/rev), featuring high-load journal bearings and pressure-balanced design, with continuous operating pressures up to 250 bar and intermittent pressures up to 280 bar.

This page features two Bosch Rexroth AZP Platform F Series models: AZPFFF-11-014/004/008LFP202020PB-S0195 (triple pump, displacements 14/4/8 cm³/rev) and AZPFF-11-016/014RRR2020KB-S0081 (tandem pump, displacements 16/14 cm³/rev).

The AZPFF/AZPFFF Series employs a modular design with interlocking housings connecting multiple pump sections in series. Each pump section contains a pair of gear wheels supported by journal bearings, along with a housing featuring front and rear covers. The journal bearings provide sufficient elasticity to create surface contact rather than line contact, ensuring excellent wear resistance, particularly at low operating speeds. The 12-tooth gear design effectively reduces flow pulsation and noise. Internal sealing is achieved through compensating forces proportional to output pressure, ensuring optimal efficiency.

As original specification models within the Bosch Rexroth AZPFF/AZPFFF line, these products enable direct form-fit-function interchangeability with original Rexroth units—no modifications to piping or mounting interfaces required. Our replacement solutions strictly adhere to Rexroth technical standards and undergo 100% simulated in-service testing to ensure performance, reliability, and service life identical to OEM products.

Technical Specifications 

Model 1: AZPFFF-11-014/004/008LFP202020PB-S0195 (Triple Pump)

Applicable Model:

• AZPFFF-11-014/004/008LFP202020PB-S0195

• Material Number: 0510565413

Model Code Breakdown (per Bosch Rexroth AZP Series naming convention):

• Product Series: AZPFFF — Rexroth AZP Platform F Triple External Gear Pump

• Component Series: 11 — 1X Series

• First Section Displacement: 014 — 14 cm³/rev

• Second Section Displacement: 004 — 4 cm³/rev

• Third Section Displacement: 008 — 8 cm³/rev

• Rotation: LFP — Left-hand configuration

• Port/Flange Configuration: 202020PB — Specific interface configuration

• Custom Code: S0195 — Customer-specific configuration

Series Technical Specifications (per Bosch Rexroth AZPF Platform F official documentation):

• Product Platform: AZPF Platform F (High-Performance External Gear Pump)

• Pump Type: Fixed Displacement External Gear Pump

• Displacement Range: 4 – 28 cm³/rev (sizes 004–028)

• Rated Operating Pressure: 250 bar (continuous)

• Intermittent Operating Pressure: 280 bar

• Maximum Pressure: Up to 310 bar (specific configurations)

• Bearing Type: High-Load Journal Bearings

• Gear Teeth: 12-tooth design for reduced flow pulsation and noise

• Sealing: Pressure-compensated gap sealing

• Mounting Standards: ISO, SAE standard flanges and shafts

This Model Detailed Specifications:

• First Section Displacement: 14 cm³/rev

• Second Section Displacement: 4 cm³/rev

• Third Section Displacement: 8 cm³/rev

• Total Displacement: 26 cm³/rev

• Continuous Operating Pressure: 250 bar (3,625 psi)

• Intermittent Operating Pressure: 280 bar (4,060 psi)

• Rotation Direction: Left-hand (counterclockwise, viewed from shaft end)

• Fluid Compatibility: Mineral Hydraulic Oil (HL, HLP)

• Seal Material: NBR

Model 2: AZPFF-11-016/014RRR2020KB-S0081 (Tandem Pump)

Applicable Model:

• AZPFF-11-016/014RRR2020KB-S0081

• Material Number: 0510665172

Model Code Breakdown (per Bosch Rexroth AZP Series naming convention):

• Product Series: AZPFF — Rexroth AZP Platform F Tandem External Gear Pump

• Component Series: 11 — 1X Series

• First Section Displacement: 016 — 16 cm³/rev

• Second Section Displacement: 014 — 14 cm³/rev

• Rotation: RRR — Right-hand (clockwise) configuration

• Port/Flange Configuration: 2020KB — Specific interface configuration

• Custom Code: S0081 — Customer-specific configuration

Series Technical Specifications (per Bosch Rexroth AZPF Platform F official documentation):

• Product Platform: AZPF Platform F (High-Performance External Gear Pump)

• Pump Type: Fixed Displacement External Gear Pump

• Displacement Range: 4 – 28 cm³/rev (sizes 004–028)

• Rated Operating Pressure: 250 bar (continuous)

• Intermittent Operating Pressure: 280 bar

• Maximum Pressure: Up to 310 bar (specific configurations)

• Bearing Type: High-Load Journal Bearings

• Gear Teeth: 12-tooth design for reduced flow pulsation and noise

• Sealing: Pressure-compensated gap sealing

• Mounting Standards: ISO, SAE standard flanges and shafts

This Model Detailed Specifications:

• First Section Displacement: 16 cm³/rev

• Second Section Displacement: 14 cm³/rev

• Total Displacement: 30 cm³/rev

• Continuous Operating Pressure: 250 bar (3,625 psi)

• Intermittent Operating Pressure: 280 bar (4,060 psi)

• Rotation Direction: Right-hand (clockwise, viewed from shaft end)

• Fluid Compatibility: Mineral Hydraulic Oil (HL, HLP)

• Seal Material: NBR

Key Technical Advantages

1. Multi-Pump Modular Design — One Shaft, Multiple Circuits, Simplified System Layout
The AZPFF (tandem) and AZPFFF (triple) Series deliver two or three independent oil sources driven by a single shaft. This design significantly reduces the number of drive interfaces required and simplifies hydraulic piping layout. Both tandem and triple pumps can share a common inlet, further optimizing system integration.

2. High Pressure Capacity for Heavy-Duty Applications
The AZPFF/AZPFFF Series delivers continuous operating pressures up to 250 bar and intermittent pressures up to 280 bar, with maximum pressures reaching 310 bar in specific configurations. The high-load journal bearing design makes it particularly suitable for heavy-duty applications.

3. 12-Tooth Gear Design with Pressure-Compensated Sealing — Low Noise, High Volumetric Efficiency
The 12-tooth gear design effectively reduces flow pulsation and operational noise. Internal sealing is achieved through compensating forces proportional to output pressure, ensuring optimal efficiency. The pressure-balanced design further enhances volumetric efficiency.

4. Journal Bearing Design — Excellent Low-Speed Wear Resistance and Long Service Life
The journal bearings provide sufficient elasticity to create surface contact rather than line contact, ensuring excellent wear resistance, particularly at low operating speeds. The sealing area between gear teeth and bearings is controlled by applying working pressure to the rear of the bearings, with specialized seals defining the boundary of this area.

5. Flexible Configuration Options with Integration Capabilities
The AZPFF/AZPFFF Series supports multiple flange, shaft, and connection options (flange or pipe thread connections). Various control valves can be integrated for systems including power steering, power braking, fan drives, and hydraulic tools. The pumps are run-in to suit OEM operating conditions.

Application Areas

• Construction Equipment: Multi-circuit hydraulic working systems and steering systems for excavators and wheel loaders

• Agricultural Machinery: Multi-circuit hydraulic outputs for large tractors (steering, lift, auxiliary functions)

• Material Handling Equipment: Forklift hydraulic systems, aerial work platforms

• Industrial Hydraulic Systems: Hydraulic power units for industrial equipment

• Specialty Vehicles: Municipal vehicles, street sweeper auxiliary hydraulic systems

• Fan Drive Systems: Hydraulic drives for engine cooling fans

Expert Maintenance Tips

1. Installation Precautions

• The AZPFF/AZPFFF Series are uni-directional rotation pumps—verify that the system’s required rotation direction matches the pump’s identification marking before installation. AZPFFF-11-014/004/008LFP202020PB-S0195 features left-hand rotation; AZPFF-11-016/014RRR2020KB-S0081 features right-hand rotation.

• Ensure coaxial alignment between the pump and drive shaft; flexible couplings are recommended to avoid radial loads on the pump shaft.

• For multi-pump installations, pay special attention to the port connection orientation of each pump section to ensure correct inlet/outlet configuration.

2. Fluid Management

• Use mineral hydraulic oils conforming to DIN 51524 standards (HL, HLP).

• System fluid cleanliness must meet Rexroth-recommended standards.

• Prime the pump by filling the housing with hydraulic fluid through the suction port before initial start-up. Never run the pump dry.

3. Start-Up & Commissioning

• Use jog start method for initial start-up; verify correct rotation direction before continuous operation.

• Allow the pump to run under no-load (low pressure) conditions for 2-3 minutes to purge air and ensure proper lubrication.

• Gradually increase to operating pressure (up to 250 bar continuous) while monitoring noise, temperature, and system pressure for normal operation.

4. Routine Maintenance

• The AZPFF/AZPFFF gear pumps themselves are maintenance-free; however, regular maintenance of the entire hydraulic system is essential for trouble-free pump operation.

• Inspect system fluid cleanliness and condition every 1,000-2,000 operating hours.

• Regularly replace return line filters and suction strainers to prevent contaminant ingress into the pump body.