What is the SKF MB 34 lock washer used for?

It is used to securely lock metric lock nuts (such as KM 34) onto a shaft or adapter sleeve.

What are the dimensions of this lock washer?

The washer has an inside diameter of 170 mm, an outside diameter of 232 mm, and a thickness of 2.5 mm.

How does the SKF MB 34 locking mechanism work?

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

Can this lock washer be reused after removal?

No, SKF recommends installing a new lock washer each time the corresponding lock nut is mounted.

SKF MB 34 lock washer for lock nuts 170 x 232 mm

Supplier number: SKF MB 34 | EAN 7316577011756

Recommended Retail Price €98.02

48.40 tax incl.

€40.00 excl. VAT (incl. all environmental contributions)

On stock - immediately available | we have 3 products in stock.

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Secure locking with Skf MB 34

Practical benefits

Prevents accidental loosening: Robust tabs engage securely with the shaft keyway and nut slots, ensuring your assembly stays locked under heavy mechanical stress.
Precision engineered dimensions: Designed with a 170 mm bore and 232 mm outer diameter, you achieve a seamless fit on matching shafts.
Straightforward and quick installation: You easily bend one of the outer tabs into the nut slot to complete a dependable positive locking connection.

In a nutshell

The right choise for

With the Skf mb 34 lock washer, you reliably prevent km 34 lock nuts and mounted bearings from vibrating loose under heavy dynamic loads. Engineered with a 170 mm inner diameter and a 232 mm outer diameter, it delivers positive mechanical locking on matching cylindrical shafts and adapter sleeves. Installation is fast and straightforward: the inner tab locates securely into the shaft keyway, while bending an outer tab into the lock nut slot eliminates unwanted axial displacement. This gives you complete control and dependable stability when servicing heavy mechanical drives and maintaining industrial machinery.

Product information FAQ

€48.40

In stock - tax incl.

Key features according to our expert

Inner diameter: 170 mm
Outer diameter: 232 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: 170 mm
Outer diameter: 232 mm
Outer diameter: 232
Bore diameter: 170
Locking device: Lock washer

Brand SKF
01230658
EAN 7316577011756
Supplier number SKF MB 34

Frequently asked questions about this product

Answered by specialists

What is the SKF MB 34 lock washer used for?: It is used to securely lock metric lock nuts (such as KM 34) onto a shaft or adapter sleeve.
What are the dimensions of this lock washer?: The washer has an inside diameter of 170 mm, an outside diameter of 232 mm, and a thickness of 2.5 mm.
How does the SKF MB 34 locking mechanism work?: The inner tab engages the shaft keyway, and you bend one of the outer tabs into a slot on the lock nut.
Can this lock washer be reused after removal?: No, SKF recommends installing a new lock washer each time the corresponding lock nut is mounted.