What is the SKF KM 13 lock nut used for?

It is used to locate and axially secure bearings onto shafts or adapter sleeves.

What thread size does this lock nut have?

The SKF KM 13 features an M65 x 2 metric thread.

What are the dimensions of this lock nut?

It has an outside diameter of 85 mm, an inside diameter of 65 mm, and a width of 12 mm.

How do you lock the KM 13 nut against loosening?

You secure it on the shaft using an MB 13 or MBL lock washer.

Is the SKF KM 13 lock nut reusable?

Yes, if undamaged, the nut can be reused with a new lock washer.

SKF KM 13 locknut 65 x 85 x 12 mm M65x2

Supplier number: SKF KM 13 | EAN 7316571353470

22.80 tax incl.

€18.84 excl. VAT (incl. all environmental contributions)

On stock - immediately available

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

↓ Documents (1) ✆ Talk to a specialist

Stable shaft mounting with Skf

Practical benefits

Secure bearing axial location: You keep bearings and drive components firmly positioned on shafts, preventing unwanted axial movement under mechanical load.
Fast and accurate tightening: Four equally spaced slots allow you to engage a suitable hook spanner for controlled torque application.
Durable and reusable build: The solid steel construction ensures long service life and lets you safely reuse it with a replacement lock washer.

In a nutshell

The right choise for

With the Skf km 13 lock nut, you securely locate and hold bearings and drive components on shafts or adapter sleeves. Engineered from steel with an M65 x 2 thread, an 85 mm outside diameter, and a 12 mm width, it keeps components firmly in place against rotational vibration and axial loads. Four equally spaced slots allow precise tightening with a suitable hook spanner. Paired with an mb 13 or mbl lock washer, it provides dependable protection against loosening. As long as it remains undamaged, you can safely reuse this lock nut during future maintenance.

Product information FAQ

€22.80

In stock - tax incl.

Key features according to our expert

Outer diameter: 85 mm
Width: 12 mm
Thread designation: M65 x 2

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: 85 mm
Width: 12 mm
Thread designation: M65 x 2
Outer diameter: 85
Bore diameter: 65
Associated mounting tool: HN 12-13
Nut for hydraulic mounting: No
Locking device: Lock washer

Brand SKF
01230600
EAN 7316571353470
Supplier number SKF KM 13

Frequently asked questions about this product

Answered by specialists

What is the SKF KM 13 lock nut used for?: It is used to locate and axially secure bearings onto shafts or adapter sleeves.
What thread size does this lock nut have?: The SKF KM 13 features an M65 x 2 metric thread.
What are the dimensions of this lock nut?: It has an outside diameter of 85 mm, an inside diameter of 65 mm, and a width of 12 mm.
How do you lock the KM 13 nut against loosening?: You secure it on the shaft using an MB 13 or MBL lock washer.
Is the SKF KM 13 lock nut reusable?: Yes, if undamaged, the nut can be reused with a new lock washer.