Security code

Dos and don’ts of electric motor care

A well-looked-after electric motor should reward you with years of efficient and reliable service, whether it’s used to drive a fan, mixer or other piece of industrial equipment. Here are a few essential rules to remember when it comes to electric motor handling, storage, operation and maintenance.


  • Store motors in a clean, dry area with a humidity of 60% or less and away from sources of vibration.
  • Check shaft alignment every 2,000 operating hours.
  • Ensure minimum loads are maintained at all times to ensure the shaft can rotate.
  • Check whether a motor rewind may be more economical should a breakdown occur, especially in the case of larger or bespoke equipment.
  • Consider coupling your motor with a variable-speed drive in order to reduce strain on components, improve energy efficiency and enable tighter process control.


  • Activate a motor that has been stored for an extended period of time before checking the insulation resistance of the windings against earth with a Megger. This is to ensure that moisture damage has not occurred.
  • Excessively lubricate bearings, as this churns the grease and leads to overheating.
  • Oversize motors, as this can cause poor performance and increased electricity consumption.
  • Allow dust to accumulate. Dust contamination can block cooling passages and cause overheating, while abrasive particles may even wear down components.
  • Ignore unusual noises such as grinding or scraping as these indicate that the shaft and/or bearings may be damaged.

Here at Gibbons we supply electric motors for a vast range of industrial applications, as well as providing an essential rewinds and repairs service. To discuss your electric motor requirements, call us on 01621 868138 or email

Electric Motors

Add comment

Back to Blog