What is the SKF KM 5 lock nut used for?

It is designed to locate and secure bearings axially on a shaft or adapter sleeve.

Which locking device is compatible with the KM 5?

It is secured on the shaft using an SKF MB 5 (or MB 5 A) lock washer.

What tool is needed to install this lock nut?

You install and remove it using a compatible hook spanner, such as the SKF HN 5-6.

Can the SKF KM 5 lock nut be reused?

Yes, you can reuse the nut provided it is undamaged. Always fit a new lock washer upon reassembly.

SKF KM 5 locknut 25 x 38 x 7 mm M25x1.5

Supplier number: SKF KM 5 | EAN 7316577758880

10.49 tax incl.

€8.67 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Ordered before 20:00 - delivered tomorrow 09/10/2026
Shipping costs €11.99 VAT included | Free shipping for orders over a total amount of 125 euros
Delivery by DHL
Delivered from Belgium

↓ Documents (1) ✆ Talk to a specialist

Secure bearing locking with Skf

Practical benefits

Reliable shaft bearing location: You securely lock bearings in position on the shaft to prevent unwanted movement under load.
Easy spanner wrench tightening: Four peripheral slots allow you to mount and dismount the nut quickly using standard tools.
Durable reusable steel build: You can safely reuse this robust steel lock nut when fitted with a suitable lock washer.

In a nutshell

The right choise for

With the Skf km 5 lock nut, you locate and secure bearings firmly on a shaft or adapter sleeve. Featuring an M25 x 1.5 metric thread, an outside diameter of 38 mm, and a width of 7 mm, it provides precise axial retention to prevent component movement under demanding conditions. Four peripheral slots make mounting and tightening simple using a compatible hook spanner such as the hn 5-6. When paired with an mb 5 or mb 5 a lock washer, it reliably resists loosening from vibration and can be safely reused during routine machinery maintenance.

Product information FAQ

€10.49

In stock - tax incl.

Key features according to our expert

Outer diameter: 38 mm
Width: 7 mm
Thread designation: M25 x 1,5

Product description

KM and KML lock nuts are used to locate bearings onto a shaft. They have metric threads and four equally spaced slots located around their circumference to accommodate a spanner. They should be locked by a lock washer to prevent unintentional loosening. KM and KML lock nuts can be reused, provided they are not damaged.

Simple, stable and reliable fastening element
Easy to install and remove
Reusable with a new lock washer
Available for thread M 10x0.75 to M 200x3 (sizes 0 to 40)

Documents

⤓ Technical data sheet PDF

All Features

Outer diameter: 38 mm
Width: 7 mm
Thread designation: M25 x 1,5
Outer diameter: 38
Bore diameter: 25
Associated mounting tool: HN 5-6
Nut for hydraulic mounting: No
Locking device: Lock washer

Brand SKF
01230592
EAN 7316577758880
Supplier number SKF KM 5

Frequently asked questions about this product

Answered by specialists

What is the SKF KM 5 lock nut used for?: It is designed to locate and secure bearings axially on a shaft or adapter sleeve.
What are the thread size and dimensions of this lock nut?: It features an M25 x 1.5 metric thread, an outside diameter of 38 mm, and a width of 7 mm.
Which locking device is compatible with the KM 5?: It is secured on the shaft using an SKF MB 5 (or MB 5 A) lock washer.
What tool is needed to install this lock nut?: You install and remove it using a compatible hook spanner, such as the SKF HN 5-6.
Can the SKF KM 5 lock nut be reused?: Yes, you can reuse the nut provided it is undamaged. Always fit a new lock washer upon reassembly.