Caleb90
RCTalk Talkaholic
So i just put a traxxas 6484x 11t pinion on my kronos xtr. Lasted a 4s pack and half a 6s pack. Traxxas gears that bad? The brown is flash rust from me washing the truck down. Was covered in mudd
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Its there steel pinion. Used on the e revoIs that aluminum or pot steel? Either way, no good for a steel spur. You need a machined steel pinion.
The shiney ground looking portion of that pinion used to have teeth AC. This is the worst pinion failure I have ever seen. I would have to wonder if the mesh was set correctly, or if the motor mount gave way, and/or there isn't some kinda binding issue in the driveline.Caleb, your application running steel-on-steel pinion/spur interface or steel-to-nylon/compo spur?
Pinion/spur lash issue? Pinion grub screw issue? Motor mounting issue? Spur gear a stand-alone install or part of a diff case/cover?
Looking at the picture it appears one gear tooth catastrophically failed followed by less than total failure of gear teeth as the pinion moved out on the motor shaft until kicking free of the spur. Lots going on there.
Regarding gear lash: As standard practice I'll check lash at multiple points to ensure there is no bind for whatever reason. Lots of variables in what seems a straight forward interface of gear teeth.
RRP (Robinson Racing Products) has been my pinion go-to for years. They be my recommendation. Even with RRP, check and double check the install. Good luck. Cheers. 'AC'
Motor mesh was set right, might have had one little tight spot. Zero drive line binding. There is zero damage to the spur gearThe shiney ground looking portion of that pinion used to have teeth AC. This is the worst pinion failure I have ever seen. I would have to wonder if the mesh was set correctly, or if the motor mount gave way, and/or there isn't some kinda binding issue in the driveline.
Ok, then my conclusion is the Traxxas pinions are made of cheese. Cheese pinions are crap.Motor mesh was set right, might have had one little tight spot. Zero drive line binding. There is zero damage to the spur gear
Even with the pinion still touching ever so slightly, the drive line spins freely. Silicone spray is for trying to drive the water out. Thinking an rc tubby wasn't the best if ideas.
Tride posting a video and i couldnt