Saturday, September 5, 2009

Air End Overhaul -IR - 04/Sept/2009


Rotary Twin Screw Oil Flooded Air Compressors !



















Typical Air End Failure

The Bearings that hold the Twin Rotors in position; need to replace regularly, 

Otherwise !!!!!















The Twin Rotors :
The Male - usually the drive,
The Female - usually follow




 








The Male Rotor After Repair ! 














Air End Bearings: 

Type and sizes of bearing for this air end are:

HM 911210 = 4 pcs HM 911244 = 4 pcs 
NU 211 ECM/C3 = 1 set 
NU 311 ECM/C3 = 1 set 

 Note:= 
There are three types of bearing cage to choose from, there are NU 311 ECJ = Steel cage 
NU 311 ECP = Polymide cage [ a type of plastic material ] 

NU 311 ECM = Brass cage 

 A sample of a different air end using ECM bearings. 
That is bearing with Brass Cage. 

 Looking for Branded new Air Compressors to save on Electrical Energy ?????







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