FAG ZM75 precision locknut

FAG ZM75 is a reference of precision locknut, within Bushings and sleeves. Request a quote for ZM75 via WhatsApp or email with the quantity you need; we respond promptly with the quote and equivalents.

FAG ZM series precision locknuts fix bearings axially on spindle shafts in machine tools and other precision assemblies where a standard nut cannot achieve the rotation accuracy and clamping force required. Their bearing faces are machined to tight tolerances to avoid deforming the bearing when tightened. MR Accesorios Industriales quotes them from Buenos Aires, Argentina.

In the designation, the number following ZM corresponds to the nominal thread size: a ZM60 goes on an M60 thread and a ZM100 on an M100 thread. That is why you select by the spindle or shaft thread, not by the bearing bore diameter.

These nuts lock without a safety washer, using their own locking elements, so the assembly remains secure without grooving the shaft. They are tightened with a hook wrench or pin wrench, and the tightening torque is adjusted according to the bearing and assembly instructions provided by the equipment manufacturer.

They are used on spindles in lathes, mills and machining centers, on rotary tables, on grinding-machine spindles and on any shaft carrying matched precision angular-contact bearings. In these assemblies, the nut defines the preload and stability of the system over time.

When replacing a precision nut, verify the complete thread (size and pitch), the space around the shaft, the type of wrench it accepts and the locking system. When dismounting a spindle, it is wise to replace the nut together with the bearings if marks appear on the bearing faces.

To quote FAG ZM precision locknuts, send us the complete code or the thread size by WhatsApp or email and we will quote them for you. We respond as soon as possible.