Okay, I probably could have given the drawing a bit more effort, but hopefully the idea is clear. Most SPD, SPD-SL, and their knockoffs use this bearing arrangement. You have two cup-and-cone bearings on the outboard side of the pedal, and a bushing on the inboard side. So yes, you have two bearings (possibly even three, depending on your definition of a bearing). However, there’s enough empty space in the system that you can indeed get solvent and compressed air through all the bearings just like shown in the linked video.
Re-lubrication is easy. The bearings are all lined up in a way that if you put grease inside the pedal body and then install the axle, the grease will be displaced by the axle and escape the pedal…going right through the bearings.
Also, do note that the ball bearings are hidden deep inside the pedal. It’s unlikely you’ll see any large contaminants there; mostly you’d just expect fine metal particles worn off the bearings. Those will easily be removed using a solvent bath.
(The axle does not actually have a thin section in the middle like I drew it as having. That’s just operator error. Same excuse for why I forgot to draw the threaded retainedretainer which the bushing is encased by and connects the axle and body.)
Quick and easy SPD pedal service:
1: Remove axle using spline tool or open end wrench as appropriate. Careful of which way to turn the tool: it is different between the two sides.
2: Clean axle unit and pedal body.
3: Add grease to pedal body as deep down as possible.
4: Reinsert axle and tighten it in the direction indicated.