Boogieman142
ArboristSite Guru
The pto side is kinda obvious that the plastic race faces to the crankcase side but the flywheel side can go either way. Cage in or out? Cage was broke up and in pieces so had nothing to look at before removal.
Stihl crank bearing orientation
- Thread starter Boogieman142
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BuckthornBonnie
ArboristSite Guru
Open area of bearing towards crankcase to allow most lube into bearing...
Always wondered if it really mattered, though.
Always wondered if it really mattered, though.
Boogieman142
ArboristSite Guru
Local stihl dealer said closed side to crankshaft. Also printed me off a copy of service manual.
BuckthornBonnie
ArboristSite Guru
You mean crank end? Here’s from the 1125 manual:
“Important- the ball bearing is closed at one side. The open side must be on the inside of the crankcase to guarantee proper lubrication.”
“Important- the ball bearing is closed at one side. The open side must be on the inside of the crankcase to guarantee proper lubrication.”
I prefer to install the open side facing the crank because then the phenolic cage is exposed to less heat and combustion, which makes the cage quite brittle over time and causes the bearing to fail.
Boogieman142
ArboristSite Guru
Open to crank it is then.
