SKF MB 20 lock washer for lock nuts 100 x 142 mm

Supplier number: SKF MB 20 | EAN 7316577011633

Recommended Retail Price €16.94

8.20 tax incl.

€6.78 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Dependable locking with Skf

Practical benefits

Prevents accidental loosening: The internal tab engages the shaft keyway so you keep lock nuts firmly locked under operating vibrations.
Straightforward positive engagement: You achieve a reliable mechanical lock simply by bending one outer tab into the nut slot.
Precise standard dimensions: Built with a 100 mm bore and 142 mm outer diameter, it fits matching metric assemblies accurately.

In a nutshell

The right choise for

With the Skf mb 20 lock washer, you reliably prevent lock nuts like the km 20 from backing off under heavy vibration and shock loads. The inner tab locks positively into the shaft keyway, while you simply bend one of the outer tabs into a slot on the lock nut to achieve a secure mechanical lock. Featuring a 100 mm bore, a 142 mm outer diameter, and a thickness of 1.75 mm, it ensures accurate axial positioning and bearing retention without damaging shaft threads, giving you dependable performance during gearbox maintenance and heavy machinery rebuilds.

Product information FAQ

€8.20

In stock - tax incl.

Key features according to our expert

Inner diameter: 100 mm
Outer diameter: 142 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: 100 mm
Outer diameter: 142 mm
Outer diameter: 142
Bore diameter: 100
Locking device: Lock washer

Brand SKF
01230645
EAN 7316577011633
Supplier number SKF MB 20

Frequently asked questions about this product

Answered by specialists

What is the SKF MB 20 lock washer used for?: It is used to securely lock compatible lock nuts, such as KM 20, onto a shaft or sleeve to prevent accidental loosening.
What are the dimensions of this lock washer?: It has an inside diameter of 100 mm, an outside diameter of 142 mm, and a thickness of 1.75 mm.
How does the MB 20 lock washer secure the nut?: The inner tab engages the shaft keyway, and one of the outer tabs is bent into a slot on the lock nut.
Which lock nuts are compatible with this washer?: This lock washer is designed for use with KM 20 series lock nuts.
Can you reuse a lock washer after removal?: No, a new lock washer should be installed every time the lock nut is mounted to ensure reliable locking.