What is the Skf MB 29 lock washer used for?

You use this lock washer to secure lock nuts such as the KM 29 on a shaft or sleeve, preventing unintentional loosening.

What are the dimensions of this lock washer?

It features an inside diameter of 145 mm, an outside diameter of 202 mm, and a material thickness of 2 mm.

Which lock nut is compatible with the MB 29?

The MB 29 lock washer is designed specifically for use with the KM 29 lock nut.

How does the locking mechanism work?

The inner tab engages the shaft keyway, and one of the outer tabs is bent into a slot on the lock nut.

Can you reuse this lock washer?

No, always install a new lock washer each time the lock nut is fitted to ensure safe and reliable locking.

SKF MB 29 lock washer for lock nuts 145 x 202 mm

Supplier number: SKF MB 29 | EAN 7316577011718

Recommended Retail Price €62.51

30.80 tax incl.

€25.45 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

Reliable locking with Skf

Practical benefits

Prevents unintentional loosening: You lock the nut firmly in place by bending a washer tab directly into the nut slot.
Precise and stable fit: With an inside diameter of 145 mm and outside diameter of 202 mm, you achieve accurate alignment.
Simple and quick installation: You engage the inner tab straight into the shaft keyway for an effortless and secure assembly.

In a nutshell

The right choise for

With the Skf mb 29 lock washer, you secure lock nuts such as the km 29 against unintentional loosening caused by heavy vibrations. Featuring an inside diameter of 145 mm and an outside diameter of 202 mm, it fits precisely onto the shaft or adapter sleeve. Installation is fast and straightforward: engage the inner tab directly into the shaft keyway, then bend one of the outer tabs firmly into a slot on the lock nut. This provides a positive mechanical lock, maintaining exact axial bearing preload and reliable alignment on industrial drivetrains and heavy machinery.

Product information FAQ

€30.80

In stock - tax incl.

Key features according to our expert

Inner diameter: 145 mm
Outer diameter: 202 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: 145 mm
Outer diameter: 202 mm
Outer diameter: 202
Bore diameter: 145
Locking device: Lock washer

Brand SKF
01230654
EAN 7316577011718
Supplier number SKF MB 29

Frequently asked questions about this product

Answered by specialists

What is the Skf MB 29 lock washer used for?: You use this lock washer to secure lock nuts such as the KM 29 on a shaft or sleeve, preventing unintentional loosening.
What are the dimensions of this lock washer?: It features an inside diameter of 145 mm, an outside diameter of 202 mm, and a material thickness of 2 mm.
Which lock nut is compatible with the MB 29?: The MB 29 lock washer is designed specifically for use with the KM 29 lock nut.
How does the locking mechanism work?: The inner tab engages the shaft keyway, and one of the outer tabs is bent into a slot on the lock nut.
Can you reuse this lock washer?: No, always install a new lock washer each time the lock nut is fitted to ensure safe and reliable locking.