New and After Market CS Motor Cooling Fans

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.
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 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.


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 key-ways, 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.

CS ELECTRIC MOTOR FAN CHART

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.

Technical data

  Unit CS 71 CS 80 CS 90 CS 100 CS 112 CS 132 CS 160 CS 180
CS Fan Dimensions
a mm 123 132 165 171 212 247 296 335
b mm 75 79 95 99 124 134 172 214
c mm 26 25 32 36 46 56 56 55
d mm 27 27 42 42 56 56 69 69
e mm 33 33 50 50 63 63 76 76
f mm 15 15 18 18 24 24 29 29
g mm 10 10 13 10 15 17 17 17
h mm 99 104 131 147 174 203 244 276
 
  Unit CS 71 CS 80 CS 90 CS 100 CS 112 CS 132 CS 160   CS 180
CS Bush Dimensions - Type Designations
bore diameter mm/inch 14 14 24 24 28 28  42  42
bore diameter mm/inch 16 16 25 25 30 30  45  45
bore diameter mm/inch 19 19 30 30 32 32  50  50
bore diameter mm/inch 20 20 0 0 38 38  0  0
bore diameter mm/inch 22 22 1/2" 1/2" 40 40  1 3/8"  1 3/8"
bore diameter mm/inch 0 0 5/8" 5/8" 45 45  1 5/8" 1 5/8"
bore diameter mm/inch 1/2" 1/2" 3/4" 3/4" 0 0  1 7/8"  1 7/8"
bore diameter mm/inch 5/8" 5/8" 7/8" 7/8"        
bore diameter mm/inch         7/8" 7/8"    
bore diameter mm/inch         3/4" 3/4"    
bore diameter mm/inch         1 1/8" 1 1/8"    
bore diameter mm/inch         1 3/8" 1 3/8"