BGL ZM80 lock nut

BGL ZM80 belongs to lock nut, part of our Bushings and sleeves range. Tell us how many you need by WhatsApp or email and we'll get back to you promptly with a quote for ZM80 and any equivalents.

The BGL ZM series lock nut holds bearings, gears and pulleys in their axial position on a shaft. It works together with an adapter sleeve and a matching lock washer. Because it is made of nodular cast iron, it tightens with less effort and is less likely to seize when you take it apart. You can order it in carbon steel or stainless steel, sized to international standards.

Reading the code is straightforward: Z, then M, then a number that stands for the nominal diameter of the shaft or adapter sleeve. The series runs through ZM6, ZM8, ZM10, ZM12, ZM15, ZM17, ZM20 and ZM25, each one larger than the last. That number is not arbitrary; it defines both the thread and the nut size. Cross-reference it with the adapter sleeve or shaft dimensions before you order.

These nuts show up wherever a bearing is seated on an adapter sleeve: gearboxes, conveyors, pumps and fans, plus gears and pulleys that need a firm axial fit that can still be removed later. They are common in food and chemical plants, metalworking shops, transport equipment and agricultural machinery.

When selecting, check three things: the shaft or adapter sleeve diameter, its thread pitch, and which lock washer you plan to use. The ZM series locks with an MB washer or an MS safety lock. Nodular cast iron lets you reach the required tightness with less torque and comes apart more easily without chewing up the thread. In a corrosive setting, go with the stainless steel version. At mounting, verify alignment and apply the specified tightening torque.

Lock nuts follow international standards, so replacements from other brands are often interchangeable, though it depends on diameter, pitch and the type of lock. If you only have a code from another maker, or a part you cannot identify, send it to MR Industrial Accessories and we will point you to the compatible option. The complete code or exact measurements make that match reliable.

To get a quote on a BGL ZM series lock nut, message the code to MR Industrial Accessories on WhatsApp or by email. If the size you need is not in the list, send the exact code or model and we will quote it. We can also help you pick the right lock washer for the application, and we reply to inquiries promptly.