Free wheels requiring centring
US, USNU and UF Series freewheels used for intermittent feed, non-return
or overspeed applications are generally placed inside closed guards (gears,
end covers, etc..) in proximity to pre-existing bearings or additional
bearings. The external and internal components must therefore be centred
to each other; in the axial direction, they must not be under load or
in tension. When pressing or extracting, simultaneously apply pressure
both on the internal and external parts to avoid damage to the contact
elements and springs. To lubricate this range of freewheels, a pre-existing
oil circulation may be sufficient, provided the type of oil used is one
of the recommended types for roller type freewheels. 
UF
US
USNU
