Bosch Rexroth A6VM series 71 User Manual

RE-A 91610/12.2015, Bosch Rexroth Corp.
Features
▶ Variable motor with axial tapered piston rotary group of
bent-axis design, for hydrostatic drives in open and
closed circuit
▶ For use in mobile and stationary applications
▶ The wide control range enables the variable motor to
satisfy the requirement for high speed and high torque.
▶ The displacement can be infinitely varied from V
gmax
to
V
gmin
=0.
▶ The output speed is dependent on the flow of the pump
and the displacement of the motor.
▶ The output torque increases with the pressure differen-
tial between the high and low-pressure side and with
increasing displacement.
▶ Wide control range with hydrostatic transmissions
▶ Wide selection of control devices
▶ Cost savings through elimination of gear shifts and
possibility of using smaller pumps
▶ Compact, robust motor with long service life
▶ High power density
▶ Good starting efficiency
▶ Version with 9-piston rotary group
▶ Good low speed characteristics
▶ High uniformity
▶ Sizes 60 to 215
▶ Nominal pressure 6500psi (450bar)
▶ Maximum pressure 7250psi (500bar)
▶ Open and closed circuits
Axial piston variable motor
A6VM series 71
RE-A 91610
Edition: 12.2015
Replaces: 04.2013
Contents
Type code 2
Hydraulic fluids 5
Flow direction 6
Shaft seal 6
Operating pressure range 7
Technical data 8
HP – Proportional hydraulic control 10
EP – Proportional electric control 13
HZ – Two-point hydraulic control 15
EZ – Two-point electric control 16
HA – Automatic high-pressure related control 17
DA – Automatic speed-related control 22
Electric travel direction valve (for DA, HA.R) 24
Dimensions size 60 25
Dimensions size 85 31
Dimensions size 85 32
Dimensions size 115 38
Dimensions size 150 44
Dimensions size 170 50
Dimensions size 215 56
Connector for solenoids 62
Flushing and boost pressure valve 63
Counterbalance valve BVD and BVE 65
Speed sensor 69
Setting range for displacement 70
Installation instructions 72
Project planning notes 74
Safety instructions 75
Americas

Bosch Rexroth A6VM series 71 Specifications

General

Series	71
Category	Hydraulic Motor
Type	Variable Displacement
Weight	See specific model details
Shaft Type	Splined shaft
Control Type	Hydraulic or Electro-hydraulic
Efficiency	High efficiency
Application	Mobile and Industrial Applications

Summary

Axial Piston Variable Motor A6VM Series 71

Key Features of A6VM Series 71 Motor

A6VM Series 71 Type Code Configuration

Detailed Type Code Specification

Explains each position and its corresponding component or feature in the type code.

Hydraulic Fluid Selection and Viscosity Guidelines

Hydraulic Fluid Viscosity vs. Temperature Chart

Operating Pressure Range for A6VM Series 71

Working Port Pressure Parameters

Technical Data: Displacement and Speed

Displacement and Speed Ratings

Provides detailed technical data on displacement and speed limits.

Inlet Flow and Torque Specifications

Permissible Radial and Axial Forces

Drive Shaft Radial and Axial Force Limits

Details maximum permissible radial and axial forces on the drive shaft.

HP Control: Proportional Hydraulic Operation

HP1/HP2: Positive Hydraulic Control Operation

HP5/HP6: Negative Hydraulic Control Operation

HP Control: Pressure Increase and Circuit Diagrams

HP2/HP6: Pilot Pressure Increase Operation

HP Control: Pressure Control and Fixed Setting

HP5D1/HP6D1: Pressure Control with Fixed Setting

EP Control: Proportional Electric Operation

EP1/EP2: Positive Electric Control Operation

EP5/EP6: Negative Electric Control Operation

EP Control: Circuit Diagrams and Pressure Control

EP5D1/EP6D1: Pressure Control with Fixed Setting

HZ Control: Two-Point Hydraulic Operation

HZ5/HZ7: Negative Hydraulic Two-Point Control

EZ Control: Two-Point Electric Operation

EZ5/EZ6: Negative Electric Two-Point Control

EZ7/EZ8: Negative Electric Two-Point Control

HA Control: Automatic High-Pressure Operation

HA1/HA2: Positive High-Pressure Control

HA Control: Pressure Increase and Characteristic Curves

HA1: Minimum Pressure Increase Operation

HA2: Pressure Increase Operation

HA Control: Hydraulic Override and Circuit Diagrams

HA.T3: Hydraulic Override Control

HA Control: Electric Override and Circuit Diagrams

HA.U1/HA.U2: Electric Override Control

HA Control: Electric Override/Travel Valve

HA.R1/HA.R2: Electric Override Control

DA Control: Automatic Speed-Related Operation

DAO: Hydraulic Travel Direction Control

DA Control: Electric Travel Valve and Circuit Diagrams

DA1/DA2: Electric Travel Direction Control

Dimensional Data: Size 60 EP5/EP6 Control

Size 60 EP5/EP6 Negative Electric Control Dimensions

Provides dimensional drawings for size 60 with EP5/EP6 control.

Size 60: Control Variant Dimensional Overviews

Size 60 EP1/EP2 Electric Control Dimensions

Dimensional overview for EP1/EP2 control, size 60.

Size 60 HP1/HP2 Hydraulic Control Dimensions

Dimensional overview for HP1/HP2 control, size 60.

Size 60: Additional Control Variant Dimensions

Size 60 HZ7 Hydraulic Two-Point Control Dimensions

Dimensional overview for HZ7 control, size 60.

Size 60 EZ7/EZ8 Electric Two-Point Control Dimensions

Dimensional overview for EZ7/EZ8 control, size 60.

Size 60: Speed-Related and DA Control Dimensions

Size 60 DAO Speed Control Dimensions

Dimensional overview for DAO control, size 60.

Size 60 DA1/DA2 Speed Control Dimensions

Dimensional overview for DA1/DA2 control, size 60.

Dimensional Data: Size 85 EP5/EP6 Control

Size 85 EP5/EP6 C2 Flange Dimensions

Dimensional drawings for size 85 with EP5/EP6 control and C2 flange.

Size 85: EP5/EP6 Control with Mounting Flange C4

Size 85 EP5/EP6 C4 Flange Dimensions

Dimensional drawings for size 85 with EP5/EP6 control and C4 flange.

Size 85: Control Variant Dimensional Overviews

Size 85 EP1/EP2 Electric Control Dimensions

Dimensional overview for EP1/EP2 control, size 85.

Size 85 HP1/HP2 Hydraulic Control Dimensions

Dimensional overview for HP1/HP2 control, size 85.

Size 85: Additional Control Variant Dimensions

Size 85 HZ7 Hydraulic Two-Point Control Dimensions

Dimensional overview for HZ7 control, size 85.

Size 85 EZ7/EZ8 Electric Two-Point Control Dimensions

Dimensional overview for EZ7/EZ8 control, size 85.

Size 85: Speed-Related and DA Control Dimensions

Size 85 DAO Speed Control Dimensions

Dimensional overview for DAO control, size 85.

Size 85 DA1/DA2 Speed Control Dimensions

Dimensional overview for DA1/DA2 control, size 85.

Dimensional Data: Size 115 EP5/EP6 Control

Size 115 EP5/EP6 Negative Electric Control Dimensions

Dimensional drawings for size 115 with EP5/EP6 control.

Size 115: Control Variant Dimensional Overviews

Size 115 EP1/EP2 Electric Control Dimensions

Dimensional overview for EP1/EP2 control, size 115.

Size 115 HP1/HP2 Hydraulic Control Dimensions

Dimensional overview for HP1/HP2 control, size 115.

Size 115: Additional Control Variant Dimensions

Size 115 HZ7 Hydraulic Two-Point Control Dimensions

Dimensional overview for HZ7 control, size 115.

Size 115 EZ7/EZ8 Electric Two-Point Control Dimensions

Dimensional overview for EZ7/EZ8 control, size 115.

Size 115: Speed-Related and DA Control Dimensions

Size 115 DAO Speed Control Dimensions

Dimensional overview for DAO control, size 115.

Size 115 DA1/DA2 Speed Control Dimensions

Dimensional overview for DA1/DA2 control, size 115.

Dimensional Data: Size 150 EP5/EP6 Control

Size 150 EP5/EP6 Negative Electric Control Dimensions

Dimensional drawings for size 150 with EP5/EP6 control.

Size 150: Control Variant Dimensional Overviews

Size 150 EP1/EP2 Electric Control Dimensions

Dimensional overview for EP1/EP2 control, size 150.

Size 150 HP1/HP2 Hydraulic Control Dimensions

Dimensional overview for HP1/HP2 control, size 150.

Size 150: Additional Control Variant Dimensions

Size 150 HZ5 Hydraulic Two-Point Control Dimensions

Dimensional overview for HZ5 control, size 150.

Size 150 EZ5/EZ6 Electric Two-Point Control Dimensions

Dimensional overview for EZ5/EZ6 control, size 150.

Size 150: Speed-Related and DA Control Dimensions

Size 150 DAO Speed Control Dimensions

Dimensional overview for DAO control, size 150.

Size 150 DA1/DA2 Speed Control Dimensions

Dimensional overview for DA1/DA2 control, size 150.

Dimensional Data: Size 170 EP5/EP6 Control

Size 170 EP5/EP6 Negative Electric Control Dimensions

Dimensional drawings for size 170 with EP5/EP6 control.

Size 170: Control Variant Dimensional Overviews

Size 170 EP1/EP2 Electric Control Dimensions

Dimensional overview for EP1/EP2 control, size 170.

Size 170 HP1/HP2 Hydraulic Control Dimensions

Displacement Setting Range Configurations

Displacement Setting Ranges (Sizes 60-115)

Tables detailing displacement setting ranges for sizes 60, 85, 115.

Displacement Setting Range Configurations (Continued)

Displacement Setting Ranges (Sizes 150-215)

Tables detailing displacement setting ranges for sizes 150, 170, 215.

Axial Piston Motor Installation Instructions

General Installation Guidelines

Installation Positions: Below and Above Reservoir

Safety Instructions for A6VM Motor Operation

Operational Safety Measures and Risks

Covers risks like burns, contamination, and potential overload.

Safety Guidelines for Winch Drive Applications

Specific safety notes for using the motor in winch drives.