Brand: SKF
KM 13 Precision Shaft Lock Nut (M65x2) for Bearing Axial Retention
The KM 13 Lock Nut is an essential component designed for securely locking bearings, primarily those mounted on adapter sleeves (e.g., H 313) or directly onto stepped shafts with M65 threads. Manufactured from high-grade carbon steel, this precision nut ensures accurate and secure axial retention, preventing critical component shifting under operational load and vibration. The standardized M65x2 metric thread guarantees seamless integration with standard industrial equipment. Correct use of the KM 13 is vital for achieving the specified internal clearance (pre-load) during bearing installation, directly impacting the longevity and performance of rotating machinery.
Designed for superior system integrity, the KM 13 must be paired with the corresponding MB 13 locking washer (sold separately) to maintain the required setting position and resist loosening from dynamic forces. Its robust construction provides high clamping force while facilitating relatively easy removal using standard hook spanners. As a critical accessory for heavy-duty applications—including pumps, gearboxes, and industrial fans—the KM 13 helps minimize unplanned downtime by ensuring bearings remain correctly seated throughout their service life. This focus on installation precision underscores its role in maximizing overall machine efficiency and reliability.
Key Features
High-Precision Threading: Ensures accurate seating and clamping force.
Critical Axial Retention: Prevents movement of bearings mounted on tapered journals or adapter sleeves.
Durable Construction: Manufactured from hardened steel to withstand high axial loads and shock.
Optimized for Standard Systems: Compatible with industry-standard M65x2 shaft threads and MB 13 locking washers.
Corrosion Resistant Finish: Provides protection in challenging industrial environments.
