AZPF-10-008RCB20MB Rexroth Hydraulic Gear Pump 8cc 250bar

Product Overview

The AZPF Series is Bosch Rexroth‘s Platform F high-performance external gear pump, a core product line within the AZP platform. Featuring high-strength aluminum alloy housings with high-load slide bearings, the AZPF Series achieves extremely low internal leakage and heat losses through pressure-dependent gap sealing and high-precision manufacturing technology. The series offers displacements from 4 to 28 cm³/rev, with continuous operating pressures up to 250 bar and intermittent pressures up to 280 bar.

This page features three AZPF Series models:

• AZPF-10-008RCB20MB (Material No. 0510425009): 8 cm³/rev displacement, clockwise rotation, taper shaft 1:5, rectangular flange Ø80 mm

• AZPF-11-016RRR20KB (Material No. 0510625071): 16 cm³/rev displacement, clockwise rotation, SAE spline shaft 9T 16/32DP, SAE A 2-bolt flange

• AZPF-12-016RHO30KB (Material No. 0510625075): 16 cm³/rev displacement, clockwise rotation, taper shaft 1:8, rectangular flange Ø36.47 mm

As original specification models within the Bosch Rexroth AZPF 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: AZPF-10-008RCB20MB

Applicable Model:

• AZPF-10-008RCB20MB

• Material Number: 0510425009

Model Code Breakdown (per Bosch Rexroth AZPF naming convention):

• AZP — External Gear Pump

• F — Platform F (High-Performance)

• -10 — Series code (1X Series)

• 008 — Geometric displacement (8 cm³/rev)

• RCB — Rotation and shaft configuration (R = Right-hand, C = Taper shaft 1:5)

• 20 — Port/flange configuration code

• MB — Seal and rear cover configuration (M = NBR seals, B = Standard rear cover)

This Model Detailed Specifications (per Bosch Rexroth official documentation):

• Geometric Displacement: 8.0 cm³/rev

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

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

• Peak Pressure: 300 bar (4,350 psi)

• Maximum Speed (@25 mm²/s): 4,000 rpm

• Minimum Speed (@25 mm²/s): 700 rpm

• Rotation Direction: Clockwise (viewed from shaft end)

• Drive Shaft: Taper shaft 1:5

• Mounting Flange: Rectangular flange Ø80 mm, M6 threads (13 mm thread depth)

• Line Connection: Square flange per ISO 8434-2

• Seal Material: NBR

• Rear Cover: Without integrated valve

• Weight: 3.3 kg

Model 2: AZPF-11-016RRR20KB

Applicable Model:

• AZPF-11-016RRR20KB

• Material Number: 0510625071

Model Code Breakdown (per Bosch Rexroth AZPF naming convention):

• AZP — External Gear Pump

• F — Platform F (High-Performance)

• -11 — Series code (1X Series)

• 016 — Geometric displacement (16 cm³/rev)

• RRR — Rotation and shaft configuration (R = Right-hand, R = Spline shaft)

• 20 — Port/flange configuration code

• KB — Seal and rear cover configuration

This Model Detailed Specifications (per Bosch Rexroth official documentation):

• Geometric Displacement: 16 cm³/rev

• Continuous Operating Pressure: 250 bar

• Intermittent Operating Pressure: 280 bar

• Peak Pressure: 300 bar

• Rotation Direction: Clockwise (viewed from shaft end)

• Drive Shaft: SAE Spline Shaft J744 16-4 (9T 16/32DP)

• Mounting Flange: SAE J744 82-2 (A) 2-bolt flange

• Line Connection: Square flange per ISO 8434-1

• Seal Material: Per specific configuration (NBR standard / FKM optional)

• Housing Material: Aluminum Alloy

Model 3: AZPF-12-016RHO30KB

Applicable Model:

• AZPF-12-016RHO30KB

• Material Number: 0510625075

Model Code Breakdown (per Bosch Rexroth AZPF naming convention):

• AZP — External Gear Pump

• F — Platform F (High-Performance)

• -12 — Series code (1X Series)

• 016 — Geometric displacement (16 cm³/rev)

• RHO — Rotation and shaft configuration (R = Right-hand, H = Taper shaft 1:8)

• 30 — Port/flange configuration code

• KB — Seal and rear cover configuration

This Model Detailed Specifications (per Bosch Rexroth official documentation):

• Geometric Displacement: 16 cm³/rev

• Continuous Operating Pressure: 250 bar

• Intermittent Operating Pressure: 280 bar

• Maximum Speed: 3,000 rpm

• Rotation Direction: Clockwise (viewed from shaft end)

• Drive Shaft: Taper shaft 1:8, shaft diameter 16.65 mm, shaft thread M12×1.5

• Mounting Flange: Rectangular flange Ø36.47 mm, M6 threads

• Line Connection: Square Flange 30

• Seal Material: NBR (housing seals), FKM (shaft seal)

• Rear Cover: Without integrated valve

• Weight: 3.6 kg

Key Technical Advantages

1. Pressure-Dependent Gap Sealing — Extremely High Efficiency
The AZPF Series employs pressure-dependent gap sealing technology, where operating pressure forces movable slide bearings against the gear end faces to create dynamic seals. This design ensures optimal internal sealing at all operating pressures, significantly improving volumetric efficiency and minimizing heat losses.

2. 12-Tooth Gear Design — Low-Noise Operation
The gears feature a 12-tooth design that effectively reduces flow pulsation and operating noise. The pumps are available in Standard, High-Performance, SILENCE, and SILENCE PLUS versions, flexibly adapting to applications with different noise requirements.

3. High-Load Slide Bearings — Long Service Life and Durability
High-load slide bearings absorb bearing forces and are specifically designed for high pressures, with excellent dry-running performance, particularly at low speeds. Combined with high-strength aluminum alloy housings, long-term reliable operation is ensured.

4. Modular Design — Flexible Multi-Pump Configurations
The AZPF Series supports multiple flange, shaft, and connection options. Multi-pump combinations are supported, allowing flexible integration based on system requirements. Optional integrated flow control or pressure-relief valves in the rear cover reduce piping complexity.

5. Compact Lightweight Design — Easy Installation
The AZPF Series features high-strength aluminum alloy housings with weights of only 3.3–3.6 kg, enabling easy single-person installation and maintenance. The compact modular design delivers efficient hydraulic power output in a small footprint.

Application Areas

• Construction Equipment: Excavator and wheel loader hydraulic working systems and pilot control systems

• Agricultural Machinery: Tractor and combine harvester hydraulic systems

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

• Power Steering Systems: Hydraulic power steering for mobile equipment (with integrated flow control valve versions)

• Industrial Hydraulic Systems: Hydraulic power units for industrial equipment

• Mobile Hydraulic Systems: Auxiliary hydraulic functions for various mobile equipment

Expert Maintenance Tips

1. Installation Precautions

• The AZPF Series are uni-directional rotation pumps—verify that the system‘s required rotation direction matches the pump’s identification marking before installation. All three featured models feature clockwise rotation.

• Ensure coaxial alignment between the pump and drive shaft; flexible couplings are recommended.

• The suction line diameter must not be smaller than the pump inlet port to prevent cavitation.

• Fluid cleanliness must meet ISO 4406:1999 code 21/18/15 or higher.

2. Fluid Management

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

• Operating temperature should be maintained within the recommended range.

• 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

• AZPF 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.