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Bosch Rexroth A2FM series User Manual

Bosch Rexroth A2FM series
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RE 91001-01-X-B2/01.2016, Bosch Rexroth AG
Details on explosion protection
Field of application according to ATEX 94/9/EC
Gas: II 2G ck IIB Tx in accordance with
DINEN13463‑1:2009, DINEN13463‑5:2011
Features
Fixed motor with axial tapered piston rotary group of
bent‑axis design, for hydrostatic drives in open and
closed circuits.
For use in mobile and stationary applications
The output speed depends on the flow of the pump and
the displacement of the motor
The output torque increases with the pressure differen‑
tial between the high‑pressure side and the low‑pres‑
sure side.
Finely graduated sizes permit far‑reaching adaptation to
the drive concerned
High power density
Small dimensions
High total efficiency
Good starting efficiency
Economical design
One‑piece tapered piston with piston rings for sealing
Series 61
Sizes 10 to 180
Nominal pressure 400bar
Maximum pressure 450 bar
Open and closed circuits
Axial piston fixed motor A2FM
for explosive areas
II 2G ck IIB Tx
Part II of instruction manual
according to ATEX directive
94/9/EC data sheet
RE 91001-01-X-B2
Edition: 01.2016
Replaces: 04.2009
Ordering code 2
Hydraulic fluids 3
Shaft seal 5
Flow direction 5
Speed range 5
Working pressure range 6
Technical data 7
Dimensions, sizes 10, 12, 16 10
Dimensions, sizes 23, 28, 32 12
Dimensions size 45 14
Dimensions sizes 56, 63 16
Dimensions sizes 80, 90 18
Dimensions sizes 107, 125 20
Dimensions sizes 160, 180 22
Counterbalance valve BVD 24
Installation instructions 27
Project planning notes 29
Safety instructions 29
Contents
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Bosch Rexroth A2FM series Specifications

General IconGeneral
TypeFixed displacement axial piston motor
Mounting FlangeSAE or ISO
Shaft Typesplined shaft, keyed shaft
Mounting TypeFlange mounting
FluidHydraulic oil

Summary

Details on explosion protection

Field of application according to ATEX 94/9/EC

Specifies the ATEX classification and compliance standards for the motor.

Features

Features of the ATEX version

Highlights ATEX-specific features and grounding connections for the motor.

Hydraulic fluids

Notes on selection of hydraulic fluid

Guides on selecting hydraulic fluid based on viscosity and ignition temperature.

Project planning note

Notes on maximum leakage temperature and case pressure monitoring.

Viscosity and temperature of hydraulic fluids

Details viscosity and temperature parameters for optimal hydraulic fluid performance.

Filtration of the hydraulic fluid

Specifies cleanliness level requirements for hydraulic fluid for service life.

Shaft seal

Permissible pressure loading

Explains pressure limits affecting the service life of the shaft seal.

Flow direction

Speed range

Working pressure range

Pressure at the working line ports A or B

Defines nominal, maximum, and minimum pressures for working ports.

Rate of pressure change RA max

Specifies maximum permissible rate of pressure build-up and reduction.

Pressure definition

Illustrates definitions of operating periods and pressures.

Technical data

Size

Lists technical specifications (Vg, Nmax, etc.) for different motor sizes.

Determining the operating characteristics

Provides formulas for calculating key operating parameters like flow, speed, torque, and power.

Permissible radial and axial forces of the drive shafts

Details maximum permissible radial and axial forces for various drive shaft sizes.

Effect of radial force Fq on the service life of bearings

Explains how radial force impacts bearing life and recommends positions.

Dimensions, sizes 10, 12, 16

Shaft options

Details dimensions for various spline and keyed shaft types.

Ports

Details specifications for working and drain ports.

Location of working line ports on port plates

Illustrates port configurations and their specifications.

Dimensions, sizes 23, 28, 32

Shaft options

Details dimensions for various spline and keyed shaft types.

Ports

Details specifications for working and drain ports.

Location of working ports on port plates

Illustrates port configurations and their specifications.

Dimensions size 45

Shaft options

Details dimensions for various spline and keyed shaft types.

Ports

Details specifications for working and drain ports.

Location of working ports on port plates

Illustrates port configurations and their specifications.

Dimensions sizes 56, 63

Shaft options

Details dimensions for various spline and keyed shaft types.

Ports

Details specifications for working and drain ports.

Location of working ports on port plates

Illustrates port configurations and their specifications.

Dimensions sizes 80, 90

Shaft options

Details dimensions for various spline and keyed shaft types.

Ports

Details specifications for working and drain ports.

Location of working ports on port plates

Illustrates port configurations and their specifications.

Dimensions sizes 107, 125

Shaft options

Details dimensions for various spline and keyed shaft types.

Ports

Details specifications for working and drain ports.

Location of working ports on port plates

Illustrates port configurations and their specifications.

Dimensions sizes 160, 180

Shaft options

Details dimensions for various spline and keyed shaft types.

Ports

Details specifications for working and drain ports.

Location of working line ports on port plates

Illustrates port configurations and their specifications.

Counterbalance valve BVD

Function

Explains the purpose and operation of counterbalance valves.

Permissible inlet flow or pressure when using DBV and BVD

Provides data on flow and pressure limits with valves.

Counterbalance valve for winches and track drive BVD...W

Details specific applications and an example circuit diagram.

Dimensions

Lists dimensions for various counterbalance valve types and sizes.

Ports

Details port specifications and versions for counterbalance valves.

Mounting of the counterbalance valve

Provides instructions on how to mount the counterbalance valve.

Installation instructions

General

Covers general installation requirements like filling and air bleeding.

Installation position

Describes recommended installation positions and reservoir connections.

Below-reservoir installation (standard)

Explains below-reservoir installation and shows diagrams.

Above-reservoir installation

Explains above-reservoir installation and shows diagrams.

Project planning notes

Working ports

Specifies pressure ratings and safety factors for connecting lines and ports.

Safety instructions

Operational Safety and Risk Management

Addresses risks like burns, contamination, and manufacturer's responsibility for safety.

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