The Lock Nut KM8 – 40X58X9 by CRF is a precision-engineered mechanical component, designed to complement your bearing systems as a crucial accessory. With its dimensions of 40 mm bore diameter, 58 mm outer diameter, and a thickness of 9 mm, this lock nut is crafted for use in various industrial settings where secure and precise locking of bearings is critical. The KM8-ECO lock nut is typically employed in industries requiring high-load capacity and accurate alignment, providing stability and reliability in your mechanical assemblies.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 40 mm |
| Outer diameter (D) | 58 mm |
| Width / Thickness (B) | 9 mm |
| ISO / cross-reference equivalent code | KM8 |
| Material | Carbon steel |
Technical advantages
The Lock Nut KM8 – 40X58X9 offers several technical advantages, making it an optimal choice for various industrial applications:
- Precision threading ensures stable and secure locking onto shafts, reducing the risk of assembly loosening under dynamic loads.
- Durable carbon steel construction withstands high-pressure environments and provides long-term wear resistance.
- Compact design with a 9 mm thickness allows for usage in space-constrained environments without compromising performance.
- Compatible with standard KM8 series lock washers for added security in high-vibration applications.
- Standard ISO dimensions allow for easy integration into existing systems without the need for custom modifications.
Typical applications
This lock nut is commonly used in a variety of specific industries and machine types:
- Textile machinery (spinning machines, looms)
- Automotive manufacturing (wheel bearing assemblies, drive shafts)
- Heavy-duty construction equipment (excavators, cranes)
- Industrial conveyor systems (belt tensioning, roller supports)
- Precision machine tools (lathes, milling machines)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for the Lock Nut KM8 – 40X58X9, SKU: KM8-ECO. With fast availability and the option to request a quote for bulk quantities, ensure your systems are fitted with the best components. Add to cart or request a quotation today.

