Craig Lyn Design Studio or Lyn Weber Workshops - Page 3

Recommendations for espresso equipment buyers and upgraders.
babsney

#21: Post by babsney » Oct 10, 2019, 1:11 pm

Just for clarity, helical cut gears are **ALWAYS** stronger than straight cut gears. They have a larger surface area engagement and therefore can transmit more torque than an equally sized straight cut gear. In addition they run quieter.

The downside is that since they are helical cut, there is now a component of load in the axial direction. This means that the shafting, and gearbox have to be stronger in order to resolve those loads without breaking, and that weight adds up quickly.

This is why race cars have straight cut gearing. It has nothing to do with the strength of the gears, and is everything to do with reducing weight.

pcrussell50

#22: Post by pcrussell50 » Oct 10, 2019, 1:13 pm

Thanks for clearing that up. I always thought that race boxes were straight cut because of strength... Of course strength and weight are interrelated.

-Peter
LMWDP #553

Dev

#23: Post by Dev » Oct 10, 2019, 1:19 pm

Does that mean that light roasts would be a problem or it doesn't really matter because the HG1 is overbuilt and only matters if we are grinding gravel.
Just thinking out loud.