Lock nut with inch thread, for locking by lock washer
AN lock nuts are used to locate bearings onto a shaft. They have inch threads and four, equally spaced slots around their circumference to accommodate a spanner. They should be locked by a lock washer to prevent unintentional loosening. AN lock nuts can be reused, provided they are not damaged.
Simple, stable and reliable fastening element
Easy to install and remove
Reusable with a new locking device
Require a keyway in the shaft or adaptor sleeve thread