Wanted Help With Robot

[gchachanidze]

Should i get the ones with the roller bearing?

[jonny]

i'd recommend either:
http://www.priorycastor.co.uk/search.as ... ection=16#
or
http://www.priorycastor.co.uk/search.as ... section=17

[daliad100]

Problem with those is that the hole is too large for the threaded portion of the drill which is about 9.5mm in diameter. You need something like 8.5mm to screw the wheels on without any nut.

The hole can however be smaller if you have a drill bit close to 8.5mm so you can make the hole larger.

[gchachanidze]

the head of the nut is 7 mm