Lock Tab failuure on 100s front wheel bearings?

Have the bearing been serviced and the lock tabs reused, not replaced?

Locking tabs need to be replaced as part of wheel bearing maintenance. They cost next to nothing.

As the others have said Axle, a new tab washer. The both nuts should also be torqued up with a correct fitting socket. If the lock nut is not tightened correctly it will allow both nuts to move. Cheers,bob.

Axle!!

That must have been the passenger side, lucky it wasnt the drivers side where it could have locked up the wheel, unless of course it has a Left hand thread.. Michael

Axle,
I had one fail ( don't remember why it failed) and the two nuts screw off allowing the wheel and hub to be retained only by the disc brake being trapped in the caliper.
It was driving normally and I only noticed something was wrong when I saw a pool of oil/grease on the ground at a morning tea stop.
A careful trackside repair then a drive to Cohen to get the bits to repair it properly.
It was an old 60 series and that was to only thing that ever gave me grief.
Ian

Whilst changing the locking tab is undoubtedly good maintenance and should be done, it is not necessarily a must do. If an unused tab is able to be used upon reinstallation then there is no detriment to its effectiveness.

However as stated they are cheap and if the task is planned then new washers should certainly be used.