BLACKMER XLW2F Installation, Operation And Maintenance Instructions page 13

Lubrication
Proper gearbox lubrication is essential in order to reduce
friction, heat, and component wear. Lubricants reduce heat
and wear by inserting a protective "fluid boundary" between
mating parts and preventing direct metal to metal contact.
Lubricants also help prevent corrosion and oxidation,
minimize foam, improve heat transfer, optimize reducer
efficiency, absorb shock loads and reduce noise. Most
NORD reducers are shipped from the factory with a pre-
determined oil fiIl level in accordance to the specified
reducer size and mounting position.
The standard orientation for the gearbox is shown in Figure
9. The gearbox is filled with the correct amount of oil and is
the correct configuration for this orientation. For any other
orientation, please consult the factory.
Lubrication Table
ISO Oil Ambient Temp
Viscosity Type Range (°F)
VG220 PAO -31 to 140
VG220 MIN-EP 32 to 104
VG220 FG 23 to 104
VG460 PAO -31 to 176
*Standard Oil Shipped with Gearbox
Oil Formulation Codes:
MIN-EP - Mineral Oil with EP Additive
PAO - Synthetic Polyalphaolefin Oil
FG - Food-Grade Oil
Figure 9 – Standard Gear Reducer Orientation
Brand
Mobil SHC630*
Mobilgear
600XP220
Fuchs FM220
Mobil SHC 634
UP
105-B00 Page 13/16
NOTICE:
The "Ambient Temperature" is intended to be an
operation guideline based upon the typical properties of
all the lubricant. The viscosity and other properties of
the lubricant change based upon load, speed, ambient
conditions, and reducer operating temperatures. The
user should consult with their lubrication supplier &
NORD gear before considering changes in oil type or
viscosity.

To prevent reducer overheating, observe the
maximum operating oil temperature limits:
Mineral Oil: 176 – 180 °F
Synthetic Oil: 225 °F

In the following instances, please consult NORD for
specific recommendations:
Gear units will operate in high ambient
o
temperature conditions exceeding 40 oC
(104 oF).
Gear units will operate in cold ambient
o
temperature conditions approaching 0 oC
(32 oF) or lower.
Lower than an ISO VG100 viscosity oil is
o
being considered for a cold-temperature
service.
Fluid grease is required for lubricating the
o
gear unit.

Observe the general lubrication guidelines outlined
in user manual U10750.
NOTICE:
Do not to mix different oils with different additive
packages or different base oil formulation types.
Polyglycol (PG) oils are not miscible with other oil types
and should never be mixed with mineral oil or
polyalphaolefin (PAO) synthetic oil.