SIEMENS
11/19
Siemens D 31 · 2015
SIMOTICS motors
Mechatronic components
Electric cylinders
11
■
More information
Full selection and ordering data can be viewed or downloaded
from SKF's website at:
www.skf.com/casm
The following example is provided to explain the ordering
process.
Example of how to order an electric cylinder (SFK linear unit and SIMOTICS S-1FK7 motor)
Requirement:
•
Average force
F
m
: 400 N (89.9 lb
f
)
• Precalculated:
F
mL
= 380 N (85.4 lb
f
)
•
Max. velocity: 280 mm/s (11 in/s)
•
Service life: 2000 km
•
Stroke: 300 mm (11.8 in)
•
Parallel arrangement of 1FK7022 motor and linear unit.
•
The electric cylinder must be supported by a swivel flange.
•
The customer will assemble the linear unit and the motor.
Solution:
•
Step 1:
Type CASM 40 BS is selected from the table of CASM-40
linear units:
-
F
m
= 640 N (144 lb
f
)
-
V
max
= 300 mm/s (11.8 in/s)
- Stroke = 100 to 600 mm (3.94 to 23.6 in)
All further steps are based on the information supplied about
CASM electric cylinders on SKF's website.
•
Step 2:
Check the service life in the document
"CASM 40 linear units".
The service life ("lifetime") diagram shows that the service life
with
F
mL
= 380 N (85.4 lb
f
) is calculated to be 2000 km.
•
Step 3:
Work out the correct article number from the document
"CASM 40 linear units".
CASM 40 BS has been selected with:
•
Stroke: 300 mm (11.8 in)
•
Motor, adapter and attachment parts separate
(assembly by customer)
The article number for the linear unit is thus:
CASM-40-
BS
-0300A
A
-000
•
Step 4:
Article number for the adapter, see
"CASM–40 Siemens motors and adapters"
Article number for parallel adapter kit for CASM–40 and
Siemens 1FK7022 motor:
ZBE–375541
•
Step 5:
Article number for swivel flange, see
"CASM–40 Accessories": ZBE-375504-4
© Siemens AG 2014