Product page
Lock nut SKF KM 40
- Manufacturer Part Number
- KM 40
- Brand
- SKFOfficial brand
- Category
- Bushings and sleeves
- Subcategory
- Lock nut
Other brands in this family
- BGL
- EMMAR
Ask us about alternatives. Equivalence is verified for each reference and application.
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Description
SKF KM 40 is a lock nut reference, within Bushings and sleeves. Request a quote for KM 40 via WhatsApp or email with the quantity you need; we respond promptly with lead time and equivalents.
The SKF KM series lock nut is an essential component for mounting and securing bearings on shafts. Its design allows precise and secure adjustment, facilitating the installation and maintenance of transmission systems. Manufactured with high-quality materials, it guarantees durability and resistance in demanding industrial applications. It is compatible with a wide range of bearings and is used together with lock washers to secure the bearing position on the shaft.
The designation of the KM series is interpreted as follows: the prefix KM indicates that it is a lock nut with slots for a hook wrench, and the number that follows (for example, KM 0, KM 1, KM 2) corresponds to the specific size and thread. The higher the number, the larger the thread diameter and load capacity. This nomenclature allows quick identification of the right nut for each application, facilitating selection and replacement.
These nuts are used in a wide variety of industries in Argentina, such as metallurgy, food, mining and petrochemical. They are common in power transmission equipment, such as gearboxes, pumps, fans and conveyors, where bearings must be secured on rotating shafts. Their presence is key to maintaining the structural integrity and correct operation of machinery, preventing axial displacement and unwanted vibrations.
For proper selection, it is essential to consider the diameter and thread pitch of the shaft, as well as the type of bearing to be secured. Mounting must be done with the corresponding lock washer (MB series) to prevent loosening. It is recommended to apply the tightening torque specified by the manufacturer and verify the alignment of the assembly. Lubrication of the thread facilitates mounting and dismounting, and the use of suitable tools, such as hook wrenches, prevents damage to the slots.
Regarding equivalences and interchangeability, SKF KM series lock nuts are compatible with those of other manufacturers that follow the same dimension standard. However, it is important to verify the technical specifications and material quality, as they may vary between brands. Always consult a specialist before mixing components from different origins to ensure optimal and safe performance.
If you need SKF KM series lock nuts, at MR Accesorios Industriales we advise you so you choose the correct size. Send us the code via WhatsApp and we will quote you promptly. With more than 80 years of experience, we guarantee personalized attention and quality products for your industrial projects.
This description provides guidance on the product type. Check the configuration and dimensions of this reference.
Dimensions
Dimensions and tolerances: Send us the part number via WhatsApp and we'll confirm dimensions, sealing, and internal clearance against the manufacturer's data sheet.
Frequently Asked Questions
- What does the number in the KM designation mean?
- The number indicates the size of the nut, which corresponds to a specific thread diameter. The higher the number, the larger the diameter. For example, KM 0 has a smaller thread than KM 10. Consult the size table to select the right one.
- Can an SKF lock nut be reused?
- Reusing lock nuts is not recommended, as they may have suffered deformation or loss of properties. It is preferable to install a new one to guarantee the safety and correct operation of the bearing.
- Which lock washer is the KM series compatible with?
- KM nuts are compatible with MB series lock washers, which are placed between the bearing and the nut to prevent it from loosening. It is important to select the washer corresponding to the same nut size.

