Motors-D81.1-complete-English-06-2020

© Siemens 2020
■ Overview
Regreasing
For motors which can be regreased at defined regreasing intervals,
the bearing lifetime can be extended and/or unfavorable
factors such as temperature, mounting conditions, speed, bearing
size, and mechanical load can be compensated.
This regreasing option is possible in the following frame sizes:
• Frame sizes 100 to 160: M8 1 acc. to DIN 71412-A
(conical lubricating nipple)
• Frame sizes 180 to 315: M10 1 acc. to DIN 3404-A
(flat lubricating nipple).
• Frame sizes 400 to 450: M10 1-5.8-A acc. to DIN 3404-A.-
(flat lubricating nipple)
Order code L23
(frame sizes 280 basic version, for the Performance Line motors
of frame sizes 160 basic version)
A regreasing device with M10 × 1 conical lubricating nipple to
DIN 71412-A can be optionally provided for frame sizes 180 to
450.
Order code L19
In the case of motors equipped with regreasing device, information
regarding regreasing intervals, quantity of grease, type of
grease and any additional data is provided on the lubrication
plate or rating plate. For regreasing intervals for the basic version,
see the Table "Grease lifetime and regreasing intervals for
horizontal installation". For motors with a mounted holding brake
(order code F01) a regreasing device cannot be installed, including
up to FS 160.
Introduction
Mechanical version
Bearings and lubrication
Mechanical stress and grease lifetime
High speeds that exceed the rated speed with converter operation
and the resulting increased vibrations alter the mechanical
running smoothness and the bearings are subjected to increased
mechanical stress. This reduces the grease lifetime and
the bearing lifetime (please inquire where applicable).
The use of rigid couplings should be avoided as far as possible.
For converter operation in particular, compliance with the mechanical
limit speeds n max at maximum supply frequency f max is
essential, see the following table "Mechanical limit speeds n max
at maximum supply frequency f max ".
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