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 TM 55-1905-221-14-3
6-24.
IDLER GEAR.
LOCATION/ITEM
ACTION
REMARKS
DISASSEMBLY
NOTE
While removing or installing an idler gear bearing, the bearing MUST be rotated to avoid
the possibility of damaging the bearing by brinelling the bearing races. Brinelling refers
to the marking of the races by applying a heavy load through the rollers of a non-rotating
bearing in such a way that the rollers leave impressions on the contact surfaces of the
races. These impressions may not be easily discerned during normal inspection. For
example, a bearing may be brinelled if a load were applied to the inner race of the
bearing assembly in order to force the outer race into the idler gear bore, thus
transmitting the force through the bearing rollers. A brinelled bearing may have a very
short life.
2.
a. Remove screws (3),
bearing retainer locks
(4), and bearing
retainer (5).
6-376
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