Hub attachment set-screw

Help & Support Robot Parts
1

Hi Folks,

Recently, I purchased Mecanum Wheel 4 Pack (w/ Metal Hubs) Product Code : RB-Ftr-40. I need to know the specification (gauge, length, thread pitch) for the set-screws that fix the wheel to the axle.

Thanks for the help,

Chris.

2

The set screw used should be 3-32 x 1/8" long.

3

I’m sorry, but I don’t understand that. “3” is a metric gauge but “32” is threads per inch (tpi) and is not a metric spec. I would expect to see “6-32” or “4-32”. I believe that the thread pitch is 32 tpi, but I don’t know the wire gauge.

Thanks for the help,

Chris.

4

3-32 is a standard imperial thread size. The set screws are not metric.