Electric motor fans , electric motor cowls and fan covers.

As well as being able to supply cooling fans for most electric motors we can also supply what is called a CS fan or Conventional/Standard fan.

GENERAL INFO
With conventional ‘standard’ replacement fans the bore dimensions rarely match those of the motor spindle ends. It is also often impractical to alter the fan bore dimensions due to the difficulties involved in holding the fan in a lathe plus it is a costly operation to turn the motor spindle to a suitable dimension to obtain a proper fit. This results in repair shops having to carry large fan stocks which take up valuable storage space and involve capital outlay.
The CS range of fans are manufactured with a single, large diameter bore and supplied with appropriate bushes to fit a variety of spindle dimensions. In the event of a perfectly fitting bush not being available it is a simple process to turn the bore of the nearest smaller sized bush to the required dimension.

For each size of fan there are various bush sizes with standard bore and two keyways, also an additional bush with cylindrical bore for turning on a lathe. Problems from expansion are eliminated as both fans and bushes are manufactured from the same material providing complete compatibility. A feature of this unique bushing system is the three lips inside the fan bore positioned above and below to ensure a strong, permanent fit from both sides. If it is necessary to lock the bush to the motor shaft this is also possible as the fan can be fitted afterwards.

APPLICATIONS
The range of polypropylene fans, designed for electric motors frames IEC71 - IEC180. They are an invaluable development for both repair shops and manufacturers of small batches. Their unique, universal bushing system eliminates any need for expensive tooling to produce special fans.

To cover the widest range of applications, fans are manufactured as flat as possible making them suitable for motors of differing manufacture. For even greater flexibility one size of bush is suitable for two fan types. The special mixture of easily machinable polypropylene used in manufacture provides a smooth finish.

To see if we can help or for more information contact us

Electric motor cowls and fan covers

Braithwaite electrical also stock and supply a large range of fan cowls or fan covers.

If we don't have what you want in stock , using our extensive supplier range , there is a very good chance we can find what you are after.