The Lock Nut KM31 – 155X200X25 from the CRF brand is a precision-engineered component designed for securing bearings onto shafts. This lock nut, measuring 155 mm in bore diameter, 200 mm in outer diameter, and 25 mm in width, is essential for various industrial applications, ensuring the secure locking of bearings in machinery. Typically utilized in the assembly of heavy-duty industrial equipment, the KM31 lock nut is part of a critical category of bearing accessories that maintain operational stability. As a key component in the bearing accessories category, it facilitates reliable machine performance in demanding environments.
Technical specifications
| Specification | Value |
| Bore diameter (d) | 155 mm |
| Outer diameter (D) | 200 mm |
| Width (B) | 25 mm |
| Weight | Not specified |
| Basic dynamic load rating (C) | Not specified |
| Basic static load rating (C0) | Not specified |
| Limiting speed | Not specified |
| Reference speed | Not specified |
| Cage type | Not applicable |
| Shielding / Sealing | Not applicable |
| Operating temperature range | Not specified |
| Ring material | Not applicable |
| Factory lubrication | Not applicable |
| Precision class | Not applicable |
| Internal clearance | Not applicable |
| ISO / cross-reference equivalent code | Not specified |
Technical advantages
The CRF Lock Nut KM31-ECO offers several technical advantages that enhance its application in industrial settings:
- Precision-engineered dimensions ensure a secure fit and stability on shafts.
- Constructed to maintain assembly integrity in high-vibration environments.
- Designed for compatibility with a wide range of bearing types and sizes.
- Facilitates easy installation and removal, minimizing maintenance downtime.
- Manufactured to meet rigorous industry standards, ensuring reliability in demanding applications.
Typical applications
The Lock Nut KM31 is typically used in various industries and machinery applications, including:
- Heavy machinery manufacturing (loaders, excavators)
- Automotive assembly lines (engine mounts, transmission assemblies)
- Aerospace applications (landing gear systems, engine mounts)
- Industrial automation equipment (conveyor systems, robotic arms)
- Wind energy turbines (rotor assemblies, nacelle components)
Availability and ordering
Eurobearing.eu is your specialized B2B supplier for industrial components, offering fast availability of the Lock Nut KM31-ECO. For businesses requiring bulk quantities, a quotation request service is available to meet your specific needs. Easily add to cart or request a quotation today for efficient procurement.

