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Radial engine lubrication

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cheeka

Active Member
Joined
Jul 15, 2016
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30
Location
Morgan Hill, CA
Can anyone help me understand how the lubrication system works in a radial engine. Specifically how are the master rods & crank lubricated. What takes the propeller thrust.
 

BoKu

Pundit
HBA Supporter
Joined
Aug 15, 2013
Messages
2,748
Location
Western US
So did they use split roller bearings on the crank?
No, almost never. Where roller bearings are used for the master rod, the crankshaft is made in pieces that can be inserted through the bearing IDs, after which it is bolted together.
 

cheapracer

Well-Known Member
Log Member
Joined
Sep 8, 2013
Messages
6,273
Location
Australian
.. or it just has 2 crankcase halves, or removable bearing housings.

Split bearings are gaining favor for a few applications recently, the required precision of manufacturing for them has become more available and affordable.
 

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