Older engines had them in their timing gears - they were in 6 cylinder Holdens, for example.
They give an amount of cushioning/vibration dampening that you can't get with steel gear sets.
Older engines had them in their timing gears - they were in 6 cylinder Holdens, for example.
They give an amount of cushioning/vibration dampening that you can't get with steel gear sets.
Old big EMCO lathes had phenolic gears in their gearbox.
I know because I got to rebuild one and that was one surprise I came actross and that day I learned about phenolic gears.
Probably also useful as a safety shear point. Better to grind a phenolic gear to dust that to break something expensive.
Also I will never forget the smell of the gear oil.
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