What is the SKF MB 15 lock washer used for?

It secures a KM 15 lock nut on a shaft or adapter sleeve, preventing unintentional loosening caused by vibrations.

What are the dimensions of this lock washer?

The washer has an inside diameter of 75 mm, an outside diameter of 104 mm, and a thickness of 1.5 mm.

Which lock nut is compatible with this washer?

The MB 15 lock washer is designed specifically for use with a KM 15 lock nut.

How do you install the SKF MB 15?

The inner tab engages the shaft keyway. Once the lock nut is tightened, bend one outer tab into one of the nut slots.

Can you reuse a lock washer?

SKF recommends using a new lock washer each time the corresponding lock nut is installed.

SKF MB 15 lock washer for lock nuts 75 x 104 mm

Supplier number: SKF MB 15 | EAN 7316571770260

3.17 tax incl.

€2.62 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 4 products in stock.

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 locking with MB 15

Practical benefits

Prevents loosening under vibration: You easily bend an outer tab into the lock nut slot to keep bearings firmly secured on the shaft.
Accurate and stable fit: Designed with a 75 mm inner diameter and 104 mm outer diameter, this lock washer ensures reliable alignment.
Simple and fast installation: The internal tab locates precisely into the shaft keyway, giving you immediate rotational locking during assembly.

In a nutshell

The right choise for

With the Skf mb 15 lock washer, you securely fasten bearings and lock nuts on shafts and adapter sleeves. Heavy mechanical vibrations can cause nuts to back off over time. This lock washer reliably prevents unintended rotation without the need for thread-locking adhesives. Featuring an inside diameter of 75 mm and an outside diameter of 104 mm, it fits a km 15 lock nut with precision. The inner tab engages the shaft keyway, after which you simply bend an outer tab into a slot on the nut. This ensures dependable axial locking during machinery assembly and industrial maintenance.

Product information FAQ

€3.17

In stock - tax incl.

Key features according to our expert

Inner diameter: 75 mm
Outer diameter: 104 mm

Product description

MB and MBL lock washers are locking devices, used to secure KM, KML and HM .. T lock nuts onto a shaft or adapter sleeve and prevent unintentional loosening. MB .. A is a stronger version of the MB washer. The lock washers engage a keyway in the shaft or adapter sleeve thread. They lock the nut in position when one of the washer tabs is bent into one of the slots in the outside diameter of the lock nut. A new lock washer should be used each time the corresponding lock nut is installed.

Simple, stable and reliable fastening element
Easy to install and remove
Used for KM, KML, and HM .. T lock nuts

Documents

⤓ Technical data sheet PDF

All Features

Inner diameter: 75 mm
Outer diameter: 104 mm
Outer diameter: 104
Bore diameter: 75
Locking device: Lock washer

Brand SKF
01230640
EAN 7316571770260
Supplier number SKF MB 15

Frequently asked questions about this product

Answered by specialists

What is the SKF MB 15 lock washer used for?: It secures a KM 15 lock nut on a shaft or adapter sleeve, preventing unintentional loosening caused by vibrations.
What are the dimensions of this lock washer?: The washer has an inside diameter of 75 mm, an outside diameter of 104 mm, and a thickness of 1.5 mm.
Which lock nut is compatible with this washer?: The MB 15 lock washer is designed specifically for use with a KM 15 lock nut.
How do you install the SKF MB 15?: The inner tab engages the shaft keyway. Once the lock nut is tightened, bend one outer tab into one of the nut slots.
Can you reuse a lock washer?: SKF recommends using a new lock washer each time the corresponding lock nut is installed.