Locknuts and lockwashers
ESE Bearings are often fit to a shaft with an adapter
sleeve, locknut, lockwasher or lock plate.
These accessories make it easy to attach and remove
They are standardized in JIS.
• Locknuts are standardized such that they can be
used with either adapter sleeves, withdrawal sleeves
• Lockwashers and lock plates are used as locks on
Lockwashers are used with bearings of bore diameter
number 40 or lower. Lock plates are used with those of
bore diameter 44 or higher.