REXROTH A2FO Series User Manual

Industrial
Hydraulics
Electric Drives
and Controls
Linear Motion and
Assembly Technologies Pneumatics
Service
Automation
Mobile
Hydraulics
Features
– Fixed displacement pump A2FO of axial piston, bent axis design
is made suitable for hydrostatic drives in open circuits.
– Suitable for use in mobile or industrial applications.
– Output flow is proportional to drive speed and displacement.
– The drive shaft bearings are designed to give the service life
expected in these areas of operation.
– Careful selection of the displacements offered, permit sizes to
be matched to practically every application.
– Favourable power / weight ratio
– Compact and economical design
– Optimum efficiency
– One piece pistons with piston rings
for open circuits
RE 91 401/09.00
replaces: 01.97
Inhalt
Features 1
Ordering Code / Standard Program 2
Technical Data 3...6
Ordering Code - Size 5 7
Unit Dimensions, Size 5 7
Unit Dimensions, Sizes 10, 12, 16 8
Unit Dimensions, Sizes 23, 28, 32 9
Unit Dimensions, Size 45 10
Unit Dimensions, Sizes 56, 63 11
Unit Dimensions, Sizes 80, 90 12
Unit Dimensions, Sizes 107, 125 13
Unit Dimensions, Sizes 160, 180 14
Unit Dimensions, Size 200 15
Unit Dimensions, Size 250 15
Unit Dimensions, Size 355 16
Unit Dimensions, Size 500 16
Unit Dimensions, Size 710 17
Unit Dimensions, Size 1000 17
Preferred Types 18
Installation and Commissioning Guidelines 19
Fixed Displacement Pump A2FO
Sizes 5...1000
Series 6
Nominal pressure up to 400 bar
Peak pressure up to 450 bar

REXROTH A2FO Series Specifications

General

Series	A2FO
Category	Water Pump
Fluid	Hydraulic Oil
Circuit Type	Open circuit
Rotation	Clockwise or counter-clockwise
Type	Axial Piston Pump
Weight	Dependent on size
Shaft Type	Splined
Port Connection	SAE Flange
Displacement Range	5 to 1000 cm³/rev

Summary

Product Features

Ordering Code and Standard Program

Technical Data

Hydraulic Fluid Selection

Guidance on selecting the appropriate hydraulic fluid for A2FO pumps.

Operating Viscosity Range

Recommended viscosity for optimal pump efficiency and service life.

Viscosity Limits

Maximum and minimum permissible viscosity values for different pump sizes.

Hydraulic Fluid Selection Notes

Factors to consider when selecting hydraulic fluid based on temperature.

Fluid Filtration Requirements

Specifies required cleanliness levels for pressure fluid and its impact.

Case Drain Pressure Specifications

Permissible case drain pressure and its effect on shaft seal life.

Working Pressure Ranges by Size

Nominal and peak pressure limits for different pump sizes.

Long-Life Bearings Option

Details on long-life bearings for extended service life and HF-fluids.

Shaft Seal Ring Temperature Range

Admissible temperature ranges for FKM and NBR shaft seal rings.

Bearing Flushing Information

Information on bearing and housing flushing via port U for specific sizes.

Performance Calculation Formulas

Formulas for calculating flow, torque, and power based on pump parameters.

Drive Shaft Load Capacity

Permissible axial and radial loads on the drive shaft for various sizes.

Optimal Drive Shaft Force Direction

Guidance on drive shaft force direction to reduce bearing load and improve life.

Ordering Code and Program - Size 5

Unit Dimensions - Size 5

Detailed physical dimensions and connection port information for Size 5.

Unit Dimensions - Sizes 10, 12, 16

Unit Dimensions - Sizes 23, 28, 32

Unit Dimensions - Size 45

Unit Dimensions - Sizes 56, 63

Unit Dimensions - Sizes 80, 90

Unit Dimensions - Sizes 107, 125

Unit Dimensions - Sizes 160, 180

Unit Dimensions - Size 200

Unit Dimensions - Size 250

Unit Dimensions - Size 355

Unit Dimensions - Size 500

Unit Dimensions - Size 710

Unit Dimensions - Size 1000

Preferred Product Types

Installation and Commissioning Guidelines

General Installation and Commissioning

General guidelines for pump start-up, housing filling, and case drain port usage.

Installation Below Tank Level

Procedure for pumps installed below the minimum oil level in the tank.

Installation On Top of Tank Level

Procedure for pumps installed above the minimum oil level in the tank.