Crank shafts are available for both the type of compressor that is Air cooled & Water cooled unit.

2)  Crank shaft for Air cooled compressors rotates on heavy duty ball Bearings which are hydraulic pressed with axial  
     alignment. These Crank shaft are dynamic balanced for vibration free working of unit & properly drilled for
     mounting of centrifugal unloaders to release pressurised  Air / Gas from Intercoolers during unload position.

3) Forged heavy duty Crank shafts are for water cooled heavy duty compressors. These crank shaft are machined  
    and  ground on Main Bearing Journal & crank pin Journal  by maintaining diameteral tolerance and axial tolerance  
    perfectly with main Bearing bushing &  crank pin bushing. Also Internally perfectly drilled for oil path for proper 
    lubrication & to  maintain oil pressure.