Crankshaft Straightening

It is generally observed that in case of failure of crank pin bearing or Main journal bearing, crankshaft loses its alignment. The alignment of crankshaft and its straightness is of great importance. The crankshaft alignment is specified by the manufacturer according to the crankpin diameter,main journal diameter length of crankshaft etc.

Crankshaft Straightening Process of MAN Diesel Engine
Crankshaft Straightening Process of MAN Diesel Engine
Crankshaft Straightening
          Crankshaft Straightening

In case there is a loss of crankshaft alignment, it is observed that main journal bearings fail repeatedly.

RA Power Solutions Pvt. Ltd. undertakes straightening of crankshaft as per the manufacturer’s specifications onsite by peening process. The technicians are experienced and trained to correct the loss of alignment of crankshaft by peening process. The crankshaft is straightened by peening process to the maximum extent and the final correction is done by grinding of main journals incase required.

Crankshaft

Grinding of Crankshaft by Crankshaft Grinder
Grinding of Crankshaft by Crankshaft Grinder

It is observed that due to seizure of bearing in most of the cases, crankshaft loses its alignment and develops bend. The alignment of crankshaft is important and it is maintained at the time of machining/grinding of crankshaft.

RA Power Solutions undertakes straightening of crankshaft onsite irrespective of the length of crankshaft, diameter of CR pin and main journal. The straightening of crankshaft is done by peening procedure for which our technicians are trained. Number of jobs has been successfully executed for straightening and onsite grinding of crankshaft.

Crankshaft Grinding
Crankshaft Grinding in Process