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Service and maintenance
8.3 Checking and changing lubricants
Shaft sealing rings
High quality radial shaft sealing rings are used to seal the oil space in the gearboxes. The
shaft sealing rings prevent lubricant from escaping from the housing at the shaft outlet and
prevent that and pollution from entering the housing. The radial shaft sealing ring is provided
with an additional protective lip to protect against contaminants from outside. The
influencing factors are:
• Speed and peripheral velocity at the sealing lip
• Ambient conditions (temperature, dust, moisture, pressure, chemicals, radiation)
• Type of seal
• Seal material
• Lubricant
• Surface quality of the sealing location
• Lubricant supply at the sealing location
Predicting the service life is not possible as a result of the various influencing factors, and
depends on the application conditions. When it comes to checking the sealing quality, radial
shaft sealing rings must be regularly checked. Note General notes about maintenance work
(Page 71).
Cam ring / coupling ring
Gearboxes with adapter for mounting standard motors, in versions K2, K3, KQ, KS, K8, are
equipped with torsionally flexible couplings to transmit force and dampen torsional
oscillation. Shock and torsional oscillation are dampened by the annular gear between the
coupling hubs. The service life of the annular gear depends on various factors:
• Operating conditions (operating temperature, chemicals)
• Application conditions (amount of shock, starting behavior, service factor)
Carefully observe the inspection intervals specified in Chapter General notes about
maintenance work (Page 71).
8.3
Checking and changing lubricants
8.3.1
General safety notes
Danger of scalding from the hot oil emerging from the unit
Before starting any work wait until the oil has cooled down to below +30 °C.
74
WARNING
Operating Instructions, 02/2021, A5E37880173A/RS-AM
BA 2030
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