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Metal Spur destroyed my Pinion Gear

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Old 08-10-2017, 04:35 AM
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RayJrr
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Default Metal Spur destroyed my Pinion Gear

I have an Axial Yeti and I replaced the plastic spur with a metal one from gpm racing. It was noisy so I adjusted thr motor position a few times trying to make it less noisy.

After about an hour the spur had worn the pinion gear down to a nub.

Is there something I can do to prevent this from happening again? Or do I need to switch back to a plastic spur ?
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Old 08-10-2017, 05:34 AM
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If you use a hardened spur gear, you must use a hardened pinion gear as well.

You may get more responses if you post this in the electric section FYI.
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Old 08-10-2017, 06:48 AM
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RayJrr
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Originally Posted by 1QwkSport2.5r View Post
If you use a hardened spur gear, you must use a hardened pinion gear as well.

You may get more responses if you post this in the electric section FYI.
Ah ha.Thanks

So with two steel gears, should that have grease too ? Doesnt say to in the manual but that is for a plastic spur.
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Old 08-10-2017, 07:11 AM
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No lubrication on the spur and pinion nor the metal pinion and plastic spur. If your gears are meshed correctly, they should last a long time provided they're kept clean. Dirt and sand will chip and wear the gears faster as well as improper meaning. The gears should be set *just* loose of tight - a phrase that makes little sense I know. You need just a minute amount of clearance between the teeth.
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Old 08-11-2017, 03:12 AM
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Originally Posted by 1QwkSport2.5r View Post
No lubrication on the spur and pinion nor the metal pinion and plastic spur. If your gears are meshed correctly, they should last a long time provided they're kept clean. Dirt and sand will chip and wear the gears faster as well as improper meaning. The gears should be set *just* loose of tight - a phrase that makes little sense I know. You need just a minute amount of clearance between the teeth.
The spur I have on there is this one:
https://www.gpmracing-parts.com/axia...-90068813.html

I just ordered this pinion gear:
https://www.amazon.ca/dp/B001SEVSN0/..._nbzJzbMYZ8V1M

Both look like 32p and hardened steel. I should be in good shape now. Thanks for thr help.
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