GRWs product catalouge

Lubrications
Selecting the right lubricant and lubricating
method is just as decisive for the bearing
function as selecting the bearing itself and
designing the mating parts.
The decision on a specific lubricant is made
according to the operating conditions and the
torque demands.
Lubricating Oils
Lubricating oil is mainly used where minimum
torque is required.
Our ball bearings, either open or with one
closure, are preserved with oil ex works if no
special lubrication is specified.
Lubricating Greases
Our ball bearings with closures on both sides
and also our ball bearings with one closure
together with a snap retainer are greased ex
works if no special lubrication is specified.
Regarding this we would mention that
lubricating greases with EP additives are not
suitable for low-noise ball bearings.
The ball bearings can be lubricated with oils
and greases other than those listed in the
tables upon request and in quantities agreed
upon. We have around 250 lubricants to
choose from. Please ask our technical support
for specific details.
Special Treatment
Special operating conditions go beyond the
limits of application even for the special
lubricants which we use. In such cases it is
possible to specify suitable ball bearings by
using different coatings. Galvanically applied
precious metal layers, graphite, MoS 2 etc. are
used here. This treatment is used for ball
bearings to work in vacuum systems up to
ultra-high vacuums (UHV), in aviation and
aerospace technology and at extreme
temperatures.
Hard coatings, for example, TiC, TiN or
highest grade chromium are also applied for
special applications.
Please contact our technical support for
further information.
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