I know you have the answers to these questions but I'll try and play a long and will most likely learn something I did not know
I have a question. Can you mesh a pinion gear into a reverse cut ring gear without reversing the rotational direction the gear teeth spiral around the pinion gear head?
I'm struggling to picture the gears meshing without having a ring and pinion in front of me. However, I believe (and I know I could very well be wrong) that you may be able to mesh a standard cut pinion gear into a reverse cut ring gear if you flip the ring gear over to the other side of the pinion. This would however, change the direction that the ring gear rotates.
Thinking about it more this might make the coast side of the pinion mesh with the drive side of the ring gear so I guess they really wouldn't mesh correctly.
Please, enlighten me if you could. I'm curious now
Can you think of a way to run a low pinion gear set in a high pinion application and still run hypoid gears?
Possibly a flipped low pinion axle running portals that reverse the rotation of the hub. Modifications to the oiling passages and such to keep the pinion bearings alive.
That or run flipped axles with a drivetrain setup that reverses the direction the driveshafts are rotating. Like rear engine buggies and using FWD engines that spin the opposite direction. This I know little about.
What distinguishes the drive from the coast side on a ring gear?
The drive side of a tooth on the ring gear is more vertical and therefor more efficient at transferring the forces as the teeth of the pinion and ring gear mesh. Greater percentage of the force applied goes into rotating the ring gear.
The coast side of the tooth is more angled and therefor there is a significant force vector perpendicular to the direction of rotation that makes the ring and pinion want to push away from each other (ofcoarse, using the example of a low pinion D30 in front application while driving forward). With enough force, the housing will deflect, the teeth on the pinion gear will ride up to the thinner potion at the top of the ring gear tooth and the tooth will fail.