Hi everyone. I have a problem with ball gearbox - I've recently changed a ball for a new one and then started to see that the ball is not spinning horizontally in 100%, it looks like it spins unstable and I'm afraid that the round ball base will scrach the playfield because of this.

I took the ball gearbox apart and found that the main element that is spinning is somehow loose - you can move it with your finger about 2 mm from a top centre.

Please can you help me with this? Maybe I'm overreacting - I do not know is it normal or do I miss some element in my gearbox. Anyone who's bought a new gearbox - have you noticed something like this?

A link to video showing the ball in action:

ready (resized).jpg

ready2 (resized).jpg

ready3 (resized).jpg

The ball is spinning clockwise - if it's wrong I'll fix it.

Thx. Does anyone know what it the black screw's that holds the ball (the one on the top of a ball) size/part number?