Millers Falls No.2 Eggbeater
Drill Type Study
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Types L2 - L0 thrust bearings
On the left is the
worn thrust bearing of the Type
On the right, it's the Type L0's thrust bearing, where someone has attempted to compensate for wear.
Type Pre-L had a little different arrangement for taking care of end
Type L uses a single, hardened steel ball to handle the thrust;
perhaps this example of the Type L2 once did as well ...
I'm planning to attempt to fix this
situation by adding a ball race to each of these two drills, which I
ought to be able to do without permanently changing anything from the
Note that the pinion teeth on the right
are far more worn than those on
the left-hand drill are. That may be the result of different
patterns of use, either in the type of drilling or in the manner of
care, with less lubrication and larger end forces applied to the Type
L2 in this example.