Screw sizes & mechanical drawings

Help & Support Robot Parts
1

While I have a specific question, it has site-wide application. I am looking for the screw sizes used in the Ball Bearing Hub Kit (BBH-01). A mechanical drawing would also be helpful. While you (and Lynxmotion) have many parts that work together, when you try to “roll your own” robotic assemblies, availability of screw sizes and mechanical drawings for your various parts would be most helpful. I looked in the assembly guides online and in the forum, but there appeared to be no mention of the BBH-01. If the screw sizes are online, please provide a link. Thanks in advance…

2

[font=Arial][size=3]It’s been a few days since I asked what I thought was a simple, quick question. So I got the calipers and measured the screws that came with [/size][/font]
[font=Arial][size=3]Lynxmotion Aluminum “L” Connector Bracket Two Pack ASB-06 Product Code: RB-Lyn-83 that fit into the four threaded holes in the [/size][/font]
[font=Arial][size=3]Lynxmotion BBH-01 Ball Bearing Hub Kit Product Code: RB-Lyn-153. Could someone verify if these are 2-56 screws? This screw size is mentioned in other products on the site. Please and thank you…[/size][/font]

3

Yes, 2-56 screws and nuts are used to attach these parts.

You will find a 4-40 bolt through the Ball Bearing Hub.

Alan

4

Hi johncst,

Sorry for the wait.
When you are looking at a SES pattern like on the BBH-01 it will most of the time be for 2-56 screws.
Either it will be threaded like on the BBH-01 or for plastic parts there is taping screws as well.

If you didn’t know, there are CAD model available here:
lynxmotion.com/s-5-ses-3d-models.aspx

5

Thanks very much for the size verification. I needed longer screws, as I have thicker stock than the supplied screws could accommodate. You stock the longer screws on your site. Thanks also for the link to the CAD files. These are MOST helpful!