About this product 19/56
RE 91071-01-B/06.2018, A2FM/A2FE/A2FMT Series 70,
Bosch Rexroth AG
5.2.2 Functional description
A hydraulic motor converts hydrostatic energy into mechanical energy. Hydraulic fluid
is fed to the cylinder bores through the working ports (5) and the control plate (4).
The pistons (2) in the cylinder bores complete a stroke that is converted into rotary
movement by the pistons on the drive shaft flange (6). During this process, the
pistons move the cylinder (3) and generate output torque on the drive shaft. This
output torque increases with the pressure difference between the high-pressure and
low-pressure sides. The output speed is proportional to the inward flow and
inversely proportional to the displacement of the hydraulic motor.
5.3 Product identification
The axial piston unit can be identified by the name plate. The following example
shows an A2FM name plate:
CNR:
MNR:
SN:
FD:
Rotation:
DE–89275 Elchingen
Made in Germany
X1234567890Y
R90XXXXXXX
SC: X
12345678
Rexroth
17W18
m XXX kg
7202
Typ: A2FMM080/70NWVN4Z902T00-0
1
2
7
3
4
5
6
12
11
10
9
8
Fig. 3: A2FM name plate
1 Manufacturer
2 Sample category (optional)
3 Internal factory designation
4 Designated area for inspection stamp
5 Direction of rotation (viewed on drive
shaft) – here: bi-directional
6 Weight (optional)
7 Bar code
8 Manufacturing date
9 Serial number
10 Material number of the axial piston unit
11 Type code
12 Customer material number
Motor function
