Liniair bearing 8mm Y-bed with oil channel

I needed a bearing with a different pitch (21mmx30mm) so I adapted Luckie80's "CS8UU compatible linear bushing with M4 thread". Great piece of modelling by the way.
I also added a oil channel in the centre of the bearing. With this added bonus you can grease your bearing with a Teflon spray without polluting your hole printer. Mind you, there is only one hole to put in the greasing straw so take care when mounting the bearing that the hole is reachable.
I successfully printed this from PLA w