The KM 25 Lock Nut 125X160X21 by SKF is a precision-engineered component designed for securing bearings on a shaft. This lock nut, measuring 125 mm in bore diameter, 160 mm in outer diameter, and 21 mm in width, is a crucial accessory in bearing assemblies. Typically utilized in heavy-duty industrial applications, the KM 25 lock nut ensures the safe and efficient fastening of bearings, thereby maintaining the integrity of the mechanical system in which it is installed.
Technical specifications
| Specification | Value |
|---|---|
| Bore diameter (d) | 125 mm |
| Outer diameter (D) | 160 mm |
| Width (B) | 21 mm |
| Weight | 1.5 kg |
| Basic dynamic load rating (C) | Not applicable |
| Basic static load rating (C0) | Not applicable |
| Limiting speed | Not applicable |
| Reference speed | Not applicable |
| Ring material | Carbon steel |
| ISO / cross-reference equivalent code | ISO 2982 |
Technical advantages
The KM 25 Lock Nut offers a range of specific advantages for industrial applications:
- Precision-engineered to ISO 2982 standards, ensuring compatibility and ease of integration.
- Constructed from durable carbon steel, providing strength and resistance to mechanical stress.
- Designed to secure bearings without additional lock washers, simplifying assembly processes.
- Thread design facilitates quick installation and secure locking, minimizing downtime.
- Standardized dimensions ensure interchangeability with other components in the same category.
Typical applications
The KM 25 Lock Nut is ideally suited for use in a variety of industries and machinery types, including:
- Pulp and paper industry (roll bearings, conveyor systems)
- Mining machinery (crusher shafts, conveyor pulleys)
- Cement manufacturing (kiln drives, mills)
- Steel production (rolling mills, continuous casting machines)
- Marine propulsion systems (propeller shafts, gearbox assemblies)
Availability and ordering
Eurobearing.eu offers the KM25-SKF lock nut with fast availability for industrial clients. As a specialized B2B supplier, we provide the option to request a quote for bulk orders, ensuring competitive pricing and timely delivery. Add this essential component to your cart or contact us for a quotation today.

