Bushes (55mm outer diameter)and I'm just wondering if they should be
Pressed in because the shaft diameter is 27mm and the bushes
I have have a 20mm diameter.

Are these wrong? I'm thinking of turning them down
On the lathe at work to 27mm. Still be tight but
Will then fit with a bit of elbow grease.
I wouldn't have thought EVEN if there supposed to be pressed
In 7mm seems a lot..
Had to hit the old ones off with an hammer was that
Tight but was 27mm. They only failed because of
Slight cracking around the outer circumference. MOT here
In OZ is pretty strict.