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Th e " Lub e -Tips " se c tion of M a ch i n e r y Lu b ricatio n magazin e feature s innovative ideas submit te d by our rea der s .
Tip for Reducing Bearing Failures
If you are experiencing premature anti-friction bearing failures, you should not only look at your lubrication
practices but also your installation practices. When induction bearing heaters are used, the inner race heats faster
than the outer race. is causes a thermal differential between the inner and outer race of the bearing, which will
reduce the bearing's internal clearance. If this differential is allowed to climb high enough, all internal clearance
in the bearing can be eliminated and damage to the balls and races can occur.
Quick Filter
Check
When checking differen-
tial filter clogging indicators,
be sure that the pilot holes in
the filter body (the ones that
feed the indicator with oil
pressure) are clear of debris.
is will help ensure you are
receiving the correct signal.
Smart Valve Labeling
A good way to make sure valves are put in the proper
operating position after maintenance is to affix perma-
nent tags on the valves indicating their normal operating
position. Wording such as, "is valve normally open for
operation," is very helpful. A pre-startup checklist will add
another layer of protection.
Advice for Oil Reservoir Baffles
and Settling Zones
Baffles are used to prevent fluid just returned to the
tank from passing directly back to the pump inlet. For
a number of reasons, a longer transit path is considered
beneficial, as it encourages better heat conduction from the
fluid, better contamination and air separation, and better
mixing with the bulk fluid. is is usually accomplished
by separating the inlet and outlet by as long of a flow path
as feasible. ML
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Did You Know ?
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e ditor@ noria .com .
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