Service and maintenance
8.2 Parts subject to wear
BA 2030
Operating Instructions, 02/2021, A5E37880173A/RS-AM
73
8.2 Parts subject to wear
Gear teeth
When carefully complying with dimensioning guidelines and maintaining maintenance
intervals, after running-in, the gearing of the gearboxes and geared motors is almost wear-
free. Worm gearing is an exception as a result of its inherent design. Depending on the
operating conditions, the flanks of worm gear teeth can exhibit differing levels of wear. This
is influenced by:
• Input speed
• Load level
• Operating temperature
• Lubricant
• Operating mode and switching frequency
Rolling bearings
Rolling bearings have a finite life even in ideal operating conditions.
The calculated nominal bearing service life is 90% of the achievable service life. It is
dependent on:
• Input speed
• Bearing load level
• Operating temperature
• Lubricant and supply of lubricant to the rolling bearing
• Maintenance
Rolling bearings must be regularly checked. Note General notes about maintenance work
(Page 71).
Lubricants
Depending on the application conditions, lubricants have a limited service life as they are
subject to natural aging. The oil service life especially depends on the oil sump temperature.
Refer to Chapter Service life of the lubricants (Page 88) for guide values relating to oil change
intervals. In the case of different operating conditions, contact Technical Support.
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