Page 353 - Handbook of Materials Failure Analysis

350 CHAPTER 13 A concise filtergram wear particle atlas

200mm 100mm
(a) (b)
FIGURE 13.64
The varnish deposit and the damages on the gearbox bearing pads: (a) the varnish deposit
and the onset damage on bearing #3; (b) the moderate damage in the edge of bearing #5 due
to the varnish deposit.

(a) 100 µm (b) 50mm
FIGURE 13.65
The damaged rubber seal generated significant amount of rubber particles: (a) a typical
rubber particles on filtergram (200 ); (b) the damaged rubber seal clogged in the inlet of
bearing #5.

(a) 50µm (b) 100µm
FIGURE 13.66
The microorganism from a new oil sample (200 ): (a) a microorganism; (b) a microorganism.