NEFF cylindrical ball nuts are highly suited for the use in housing bores because of the compact construction and the integrated feather key groove. The design of the series KGM-N in accordance with the NEFF standard is particularly robust.
Cylindrical ball nut units preloaded without clearance consist of two cylindrical ball nuts. These units are either available in accordance with the NEFF standard or with the DIN standard. The preload is at the maximum 5% of the dynamic load rating Cdyn. If the preloading is more than 2% we recommend the pitch accuracy T5. This type is characerised by a very high stiffness.