Bear X Idler Mount - Misumi GT3

I needed a bit more clearance to give the gt3 idler from misumi a try.

Idler:
GPP20MR2060-A-H6 : https://us.misumi-ec.com/vona2/detail/110303273930?ProductCode=GPP20MR2060-A-H6

Ball bearings:
MR63-2RS: http://a.co/d/53uqtn4

On 24/02/2019 I had one of these bearings give up on my x axis. Sounded nice and crunchy when it failed. Probably only a few hundred hours on it before failing. Hoping it was a fluke for now.

Dowel Rod:
2.95mmx15.8mm: http://a.co/d/0bNPsYa

Same idler, beari