SKF KM23

SKF KM 23 Bearing Lock Nut

Description

The SKF KM 23 is a high-quality metric lock nut designed for securing bearings and other machine components onto a shaft. It prevents axial movement and ensures precise positioning. Manufactured in Sweden, this nut adheres to stringent quality standards for reliable industrial applications. It is intended to be used with an appropriate locking washer or clip to prevent it from loosening under operational stress.

Specifications

• Manufacturer: SKF
• Type: KM 23
• Thread Size: M115x2
• Outside Diameter: 150 mm
• Width: 16 mm
• Material: Steel
• Recommended Locking Washer: MB 23

Label Info

• Brand: SKF
• Model: KM 23

Application

This lock nut is widely used in various industrial sectors, including manufacturing, automotive, and power transmission, for mounting bearings on shafts, adapter sleeves, and withdrawal sleeves.

Country of Origin

Made in Sweden.

CO2 Impact

By purchasing this pre-owned component, you contribute to a circular economy and help avoid approximately 1.44 kg of CO2 emissions associated with the production of a new one.

Availability

This item is in stock and ready for immediate dispatch. Order now from spareparts2day for expert support and fast delivery.

FAQ

What is the correct locking device for the SKF KM 23 nut?

The KM 23 lock nut is designed to be used with an MB 23 locking washer. Alternatively, for higher precision applications, MS 30/115-31/115 series locking clips can be used.

What is the proper tightening method for a KM 23 lock nut?

The KM 23 should be tightened using a hook spanner (e.g., SKF HN 21-22) that fits the four slots on its circumference. The required torque depends on the specific bearing mounting procedure, often involving measuring the reduction of radial internal clearance.

Is the M115x2 thread a standard metric coarse or fine thread?

The M115x2 designation indicates a metric fine thread. ‘M115’ is the nominal diameter in millimeters, and ‘2’ is the thread pitch in millimeters, which is finer than the standard coarse pitch for this diameter.

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Last Update: Friday, March 13, 2026