11
Technical data and dimension sheets
Surface protection
Operating Instructions – MOVIMOT
®
advanced
251
11.6
Surface protection
11.6.1
General information
SEW‑EURODRIVE offers the following optional protective measure for operating drive
units under special environmental conditions.
•
OS surface protection
In addition, special optional protective measures for the output shafts are also avail-
able.
11.6.2
Surface protection
Instead of the standard surface protection, the drive units are optionally available with
the OS1 surface protection.
Surface protection
Ambient conditions
Sample applications
Standard
Suitable for machines and systems in build-
ings and enclosed rooms with neutral atmo-
spheres.
Similar to corrosivity category
1)
:
•
C1 (negligible)
•
Machines and systems in the
automotive industry
•
Conveyor systems in logistics
areas
•
Conveyor systems at airports
OS1
Suited for environments prone to condensa-
tion and atmospheres with low humidity or
contamination, such as applications out-
doors under roof or with protection.
Similar to corrosivity category
1)
:
•
C2 (low)
•
Systems in saw mills
•
Hall gates
•
Agitators and mixers
1) According to DIN EN ISO 12 944-2
11.6.3
Special protective measures
Observe the information in the "DRN.." gearmotor catalog.
11.6.4
NOCO
®
fluid
As standard, SEW‑EURODRIVE supplies NOCO
®
fluid corrosion protection and lubri-
cant with every drive unit with hollow shaft. Use NOCO
®
fluid when installing gear
units with hollow shafts. Using this fluid can help prevent contact corrosion and makes
it easier to disassemble the drive at a later time. NOCO
®
fluid is also suitable for pro-
tecting machined metal surfaces that do not have corrosion protection, such as parts
of shaft ends or flanges. You can also order NOCO
®
fluid in larger quantities from
SEW‑EURODRIVE.
NOCO
®
fluid is a food grade substance according to NSF-H1. You can tell that
NOCO
®
fluid is a food grade oil by the NSF-H1 identification label on its packaging.
25891936/EN – 05/2020
