Storage and handling
Rolling bearings should be stored in a cool, clean, low
humidity environment free of dust, shocks and vibrations. Storing bearings
directly on the floor should therefore be avoided. If stocks of bearings
are kept, it is important to impose the practice of stock rotation. SKF
bearings are preserved and packaged to ensure that when complying to these
storage circumstances the storage life will be several years.
The simplest and most effective bearing maintenance is to
keep the bearing clean. Contamination will shorten the life of any bearing
and the importance of cleanliness cannot be overstressed.
The following considerations are important for bearing
maintenance:
- All
components should be clean and dry.
- Cleaning
material should be readily available.
- Cotton
waste should not be used to clean or dry bearings.
- Clean hands
and tools when mounting are a must.
Before mounting the bearing the following should always
be observed:
- Make sure
that housing and shaft are clean and not damaged.
- Make sure
that the new bearing is identical to the one being replaced
- Ensure that
the lubricant to be used is clean and of the correct specification.
- Make sure
the necessary tools and equipment are at hand.
- Keep the
work area clean
When mounting the bearing the following should always be
observed:
- Do not
remove the bearing from its wrapping until the last moment.
- Do not try
to wash the bearing. The preservative used is compatible with mineral
based oils and greases and should only be removed from the bore and
the outside diameter of the bearing's outer ring. A lint-free cloth
dampened with a cleaning agent is suitable for this purpose.
- Ensure that
the mounting forces are only applied to the bearing ring with the
interference fit.
- Use a
minimum force with maximum control method.
- Lightly
coat the mating surfaces with oil.
Safety
In any workplace operator safety is of paramount
importance. To keep you and those around you safe always read the
Instruction manuals before operating any of our products and pay particular
attention to the safety warnings.
- Always wear
protective clothing and goggles when mounting and dismounting rolling
element bearings.
- Always use
heat resistant gloves when mounting heated bearings and when
dismounting bearings using heat.
- For your
own safety and to prevent bearing damage, do not strike the bearing
directly with any hard object such as a hammer or chisel.
- When
dismounting bearings using mechanical pullers, make sure you select a
suitable puller for the application with sufficient pulling force in
order to help prevent puller overload. Overloading a puller can result
in puller arm or beam breakage, causing personal injury. A safety
blanket fitted around the puller and bearing helps reduce the risk on
injury in case the puller's arm or spindle breaks.
- Remember
that corrosion on the interference fit may require significantly
higher dismounting force. If the interference fit is corroded, use
penetrating oil to dissolve/loosen the rust.
- Remember
that powerful forces may be involved when dismounting bearings and
care must always be taken to avoid injury.
- Keep the
work area clean; good housekeeping reduces accidents.
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