What is the SKF MB 11 lock washer used for?

It is designed to secure a KM 11 lock nut on a shaft or adapter sleeve and prevent accidental loosening.

What are the dimensions of this lock washer?

The SKF MB 11 features a 55 mm bore diameter, an 81 mm outside diameter, and a material thickness of 1.5 mm.

How does this 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.

Can a lock washer be reused?

No, you should always install a new lock washer each time the lock nut is mounted to ensure reliable locking.

SKF MB 11 lock washer for lock nuts 55 x 81 mm

Supplier number: SKF MB 11 | EAN 7316570627305

2.30 tax incl.

€1.90 excl. VAT (incl. all environmental contributions)

On stock - immediately available

Delivery by DHL

↓ Documents (1) ✆ Talk to a specialist

Reliable locking with Skf MB 11

Practical benefits

Prevents unintentional loosening: The sturdy locking tabs engage directly into keyways and slots, ensuring you keep shaft nuts securely in place.
Quick and easy installation: You bend one of the outer tabs effortlessly into the lock nut slot for immediate mechanical fastening.
Precise standard dimensions: With a 55 mm inside diameter and 81 mm outside diameter, you achieve an exact fit on shafts.

In a nutshell

The right choise for

With the Skf mb 11 lock washer, you reliably secure a km 11 lock nut onto a shaft or adapter sleeve, preventing accidental loosening caused by heavy vibrations and rotational torque. The inner tab engages accurately into the shaft keyway, allowing you to easily bend one of the outer tabs into a lock nut slot for immediate mechanical locking. Featuring a 55 mm inside diameter, an 81 mm outside diameter, and a material thickness of 1.5 mm, this lock washer ensures precise and permanent axial positioning for your bearings.

Product information FAQ

€2.30

In stock - tax incl.

Key features according to our expert

Inner diameter: 55 mm
Outer diameter: 81 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: 55 mm
Outer diameter: 81 mm
Outer diameter: 81
Bore diameter: 55
Locking device: Lock washer

Brand SKF
01230636
EAN 7316570627305
Supplier number SKF MB 11

Frequently asked questions about this product

Answered by specialists

What is the SKF MB 11 lock washer used for?: It is designed to secure a KM 11 lock nut on a shaft or adapter sleeve and prevent accidental loosening.
What are the dimensions of this lock washer?: The SKF MB 11 features a 55 mm bore diameter, an 81 mm outside diameter, and a material thickness of 1.5 mm.
How does this 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.
Can a lock washer be reused?: No, you should always install a new lock washer each time the lock nut is mounted to ensure reliable locking.