WEG W22Xdb - Lubrication Intervals

Flameproof motors | 39
www.weg.net
8.2.2. TYPE AND GREASE
CHARACTERISTICS
For standard temperature range, WEG ribbed
cooled motors, 2, 4 or more poles and tube cooled
motors 2 poles are supplied with POLYREX EM
103 grease (Supplier: Esso).
Tube cooled motors of 4 poles and more are
supplied with STABURAGS N12MF grease
(Supplier: Klüber), enough for the operating time
period indicated on the data sheet and on the
bearing identification nameplate.When the motors
are to be applied in negative ambient temperatures
they are supplied with grease AEROSHELL 22
(Suplier: Shell).
Characteristics of greases used on WEG motors:
Table 8-1 - Greases for motors with bearings.
GREASES FOR MOTORS WITH BEARINGS
Supplier
Grease
Thickeners
Base oil
Temperature range
(ºC)
Application
Esso
Polyrex
EM103
Polyurea
Mineral
-30 up to +170
Normal
Shell
Albida
RL2
Lithium complex
Mineral
-20 up to +150
Normal
Kluber
Staburags
N12MF
Sodium complex
Mineral
-10 up to +120
Normal
Shell
Aeroshell
22
Microgel
Sinthetic hydrocarbon
-65 up to +204
Low temp.
Kluber
Isoflex
NBU 15
Barium Complex
Mineral + ester +
Synthetic Hydrocarbon
-35 up to +90
High speed
> 3600 rpm
ATTENTION
For correct lubrication, always use the
type of lubricant indicated on the motor
nameplate.
8.2.3. LUBRICATION INTERVALS
Lubrication intervals depend on the motor speed,
working temperature, type of grease used and
working conditions.
The lubrication interval and type of bearings are
indicated on the motor nameplate.
Operational safety of these motors will depend on
the compliance of the lubrication intervals.
ATTENTION
Motors kept in stock should be
relubricated every six months. Once
each 2 moths, shaft must be rotated in
order to have the grease
homogenized.
ATTENTION
The bearings data, amount of grease
to use, type of grease and lubrication
intervals are informed in the nameplate
attached to the motor. We recommend
the carefully verification of these data
before carry out the bearings
lubrication procedure.
ATTENTION
Lubrication intervals and amount of
grease given in the tables below
should only be taken as advisory
information. For relubrication, follow
the intervals and grease amounts
indicated on the identification
nameplate.