Just thinking about some differential specs and design data.
Looking at the helix angle of the pinion (and of course negative corresponding ring tooth angle/twist), there are a couple of benefits to increased angle/twist... decreased noise and also length along which force would be transferred between teeth of R&P. Down side to increased angle would be associated thrust along the length of the pinion gear and hence increased force/wear of components along the shaft length.
So, with that, does anyone have experience with taking the same size R&P and varying that angle to see how wear patterns change on the teeth themselves? ie, if a person were to have one end of the spectrum being 0 angle like straight-cut gears vs. the other end of the spectrum where helical angle would be large, and hence the gear would appear to have a high-degree of twist to it... and how this changes 'real-world' application? ie, more/less failures and/or wear in either instance (of the gears themselves)?
Also the effect on speed of rotation from heat/etc? I could see situations where friction/contact would vary to differing degrees and hence vary heat generation... with neither straight cut / helical being the one 'no-brainer'. Remove mechanical noise from the 'give-a-hoot' equation.
Looking at the helix angle of the pinion (and of course negative corresponding ring tooth angle/twist), there are a couple of benefits to increased angle/twist... decreased noise and also length along which force would be transferred between teeth of R&P. Down side to increased angle would be associated thrust along the length of the pinion gear and hence increased force/wear of components along the shaft length.
So, with that, does anyone have experience with taking the same size R&P and varying that angle to see how wear patterns change on the teeth themselves? ie, if a person were to have one end of the spectrum being 0 angle like straight-cut gears vs. the other end of the spectrum where helical angle would be large, and hence the gear would appear to have a high-degree of twist to it... and how this changes 'real-world' application? ie, more/less failures and/or wear in either instance (of the gears themselves)?
Also the effect on speed of rotation from heat/etc? I could see situations where friction/contact would vary to differing degrees and hence vary heat generation... with neither straight cut / helical being the one 'no-brainer'. Remove mechanical noise from the 'give-a-hoot' equation.