40 | Flameproof motors
Lubrication intervals for horizontal mounted ribbed
cooled and tube cooled motors (50Hz and 60Hz)
operating at an ambient temperature range -20ºC
up to +40ºC or -55ºC up to +40ºC are present in the
Table 8-2.
Table 8-2 – Ball bearings lubrication intervals for
horizontal mounting
As an option, horizontal motors can be equipped
with roller bearings. Lubrication intervals for
horizontal mounted ribbed cooled and tube cooled
motors (50Hz and 60Hz) operating at an ambient
temperature range -20ºC up to +40ºC or -55ºC up
to +40ºC are present in the Table 8-3:
Table 8-3 – Roller bearings lubrication intervals for
horizontal mounting
Lubrication intervals for horizontal mounted ribbed
cooled and tube cooled motors (50Hz and 60Hz)
with special mounting of two (2) bearings (one (1)
roller bearing and one (1) ball bearing) operating at
an ambient temperature range -20ºC up to +40ºC
or -55ºC up to +40ºC are present in the Table 8-4:
Table 8-4 – Roller and Ball bearings lubrication intervals
for horizontal mounting
ROLLER BEARING + BALL BEARING
Lubrication intervals for vertical mounted ribbed
cooled motors (50Hz and 60Hz) operating at an
ambient temperature range -20ºC up to +40ºC or -
55ºC up to +40ºC are present in the Table 8-5 and
Table 8-6:
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