2200 Monster front bearing problem

I bought a used Eight T with a Losi electric conversion installed. I installed a "new" Monster 2200kv system and have been having issues with the front bearing on the motor blowing out. I am geared mild at 12/47 on 4s with the punch control turned down 10 and the end point reduced by 30. I have drilled and tapped the motor endbell for 4mm screws and they do not loosen until I loosen them. When the bearing goes out, the pinion normally is destoyed. Gear mesh is set perfect each time.
Does anyone have any help with this problem?
Thanks in advance,
Brian

Any help would be appreciated.

[Arct1k]

Guess is the gear mesh is going and you are putting a lot of side load on the bearing causing it to fail or that the end bell is now worn...

[suicideneil]

You need to increase the punch control % to reduce the punch

I would inspect the front endbell to make sure there is no slop with a new bearing fitted, and if its okay try to find a better quality bearing; castle only uses abec 1 rated items and they are fine for 90% of people; just us 10% of nutters that manage to kill them.

Castle really should use better bearings though- if they buy in bulk then the cost increase would be minimal...

[Stoomstrijkijze]

Always check your mesh after every lipo with the losi mount. I had that mount too and it's crap tbh. I had to reset mesh every 2-4 lipo's.
Always check the slop on your shaft. As soon as you feel there's a bit of slop in the shaft, change the bearing. I bought 2 Boca cerenamic bearings for my CC and Tekin motor but I haven't tried them yet. The stock ones are still fine for now. I hope those bearing will last very long cause they are 5$/piece.

[Arct1k]

I would buy a repair kit now...