Product Overview: The KM 04 (AN 04) Lock Nut
The KM 04, also known by its alternative designation AN 04, is a precision-engineered lock nut designed for securing bearings and other components onto a 20mm shaft. It is a fundamental part of our Lock Nut and Bearing Accessories collections. This component plays a crucial role in preventing the axial loosening of bearings, ensuring that correct clearance and preload are maintained during operation. The KM 04 features a metric thread of M20x1.0 and is typically used in conjunction with an MB 04 lock washer.
Manufactured from high-grade steel, the KM 04 lock nut provides a reliable and reusable solution for mounting bearings, either directly on a threaded shaft or on an adapter sleeve like the H 204. Its simple yet effective design, featuring four equally spaced slots for a hook or impact spanner, makes it an industry standard for a wide range of mechanical and industrial applications.
Key Features of the KM 04 Lock Nut
- Standard Designation: Interchangeable with AN 04 lock nuts.
- Precision Thread: Features a standard M20x1.0 metric thread for a secure fit.
- Durable Material: Constructed from high-quality steel for excellent strength and longevity.
- Secure Locking: Designed to be used with an MB 04 lock washer, which engages with a keyway in the shaft and a slot in the nut to prevent rotation.
- Easy Installation: Four slots on the outer circumference allow for easy tightening and loosening using a standard hook or impact spanner wrench.
- Reusability: Can be dismounted and reused multiple times without compromising its locking effectiveness.
Common Applications
- Bearing Mounting: Used to axially secure bearings on adapter sleeves (e.g., H 204) or directly onto threaded shafts.
- Industrial Gearboxes: Essential for holding gears and bearings in place on shafts.
- Pumps and Compressors: Ensures that rotating components remain securely positioned.
- Electric Motors: Used to secure bearings on the motor shaft.
- Conveyor Systems: Provides reliable fastening for rollers and pulleys.
- Agricultural Machinery: Employed in various equipment where components are subjected to vibration and shock loads.
- Automotive Transmissions: Secures gears and bearings within transmission assemblies.
Benefits of Using the KM 04 Lock Nut
- Enhanced Reliability: Prevents axial movement of bearings, reducing the risk of machinery failure.
- Simplified Assembly: Offers a straightforward and effective method for securing components on a shaft.
- Cost-Effective Solution: Provides a reliable and inexpensive way to achieve secure bearing mounting.
- Maintained Performance: Ensures that bearing preload and internal clearance are correctly maintained, optimizing performance and service life.
- Increased Safety: A properly secured bearing assembly enhances the operational safety of the machinery.
- Vibration Resistance: When used with a lock washer, it provides excellent resistance to loosening caused by vibration.
