SKF HM 42 T lock nut

SKF HM 42 T 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 HM 42 T and any equivalents.

For mounting bearings onto shafts, the SKF HM T lock nut works together with a lock washer to hold the bearing in its axial position. The thread is metric and the body carries slots for the washer, so the assembly stays put even when vibration is present.

Reading the code: HM indicates a lock nut, and the digits are a size code. Take that number, multiply by five, and you get the thread diameter in millimeters. HM 42 T, for instance, is a 210 mm thread. The T at the end tells you the nut has external slots for an MB lock washer, which is what provides the positive locking action.

These nuts show up in gearboxes, pumps, fans, conveyors and machine tools, wherever a bearing has to be fixed on a rotating shaft. Industries such as metallurgy, food processing, cement and mining rely on them. They matter most in equipment that sees axial and radial loads, because they keep the bearing and shaft assembly stable.

Choosing the correct nut comes down to the shaft thread diameter and pitch, which have to match the HM designation. Check that the lock washer is compatible as well; it is picked according to shaft diameter. When you mount the nut, lubricate the thread and apply the recommended torque so the nut is not deformed. Good alignment and the right tools make the fastening safe and long lasting.

Other brands that use the same designation and standardized dimensions can be used in place of SKF HM T nuts. Tolerances and material may differ from one maker to another, so review the technical specifications before substituting. We supply the SKF brand.

If you need an SKF HM T series lock nut, send the part number by WhatsApp or email and our team will quote it promptly. We can also suggest equivalents and help you confirm the right model for your application.