Precision Locknuts

Precision Locknuts (Lock Nuts) ZM, AM, ZMA,

Precision locknuts are used to achieve a specific axial preload in bearings for ball and roller screws.  They are also utilized where high axial forces must be supported and high axial runout requirements are rigidity of the system are required.

AM - segments for thread clamping

ZM - locking pegs, radially arranged (most commonly used)

ZMA - locking pegs, radially arranged, heavy series