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Continuous relubrication

This procedure is used when the calculated relubrication interval is very short, e.g. due to the adverse effects of contamination, or when other procedures of relubrication are inconvenient, e.g. access to the bearing is difficult. Due to the excessive churning of the grease, which can lead to increased temperature, continuous lubrication is only recommended when rotational speeds are relatively slow such as the following speed factors:
  • A < 150 000 mm/min for ball bearings
  • A < 75 000 mm/min for roller bearings
In these cases, the initial grease fill for the housing can be up to 90% and the quantity for relubrication per time unit is derived from the equations for Gp (→ Replenishment) by spreading the required quantity over the relubrication interval.
When using continuous relubrication, check whether the grease can be adequately pumped through the ducts at the prevailing ambient temperature.
Continuous lubrication can be achieved via single-point or multi-point automatic lubricators, e.g. SKF SYSTEM 24 or SKF MultiPoint Lubricator. For additional information, contact the SKF application engineering service.
Centralized lubrication systems, such as SKF Monoflex, SKF ProFlex, SKF Duoflex and SKF Multiflex, can reliably deliver grease in a wide range of quantities. For additional information about SKF lubrication systems, refer to Lubrication solutions.
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