SPV spindles permit grinding at speeds which could so far be reached only by electric grinding spindles. SPV spindles provide a considerably higher accuracy. Precision angular contact ball bearings of precision class P2S are used which provide particularly good rigidity.
To be able to fully utilize this precision in the grinding process, screw-in mandrels are used which are fastened by means of a threaded pin.
This new fastening system guarantees utmost radial runout of the screw-in mandrel.

