> For the complete documentation index, see [llms.txt](https://docs.wcproducts.com/welcome/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.wcproducts.com/welcome/system-and-structure/wcp-stub-rollers/overview-and-features.md).

# Overview and Features

Our Stub Roller System provides a highly modular platform for teams to create a variety of rollers. Constructed from high-strength aluminum, this system delivers a lightweight yet robust solution for your robot. The stub design allows for easy roller installation and removal by using the stub wrench and the included mounting bolt. We offer pulley end hubs, SplineXL end hubs, and regular end hubs, enabling you to utilize belts and gears for powered rollers, or configure them as idler rollers as needed.

<figure><img src="/files/b01dMH9Mjd7T51nwsL52" alt="" width="563"><figcaption></figcaption></figure>

### Notable Features

* Lock nut built into the end of each shaft
* Flats on shafts allow for easier roller removal
* Internal snapring grooves on hubs
* 1-3/4", 2-1/4", 2-3/4" stub shaft lengths
* Pulley end hubs, SplineXL end hubs, and regular end hubs available


---

# Agent Instructions
This documentation is published with GitBook. GitBook is the documentation platform designed so that both humans and AI agents can read, navigate, and reason over technical content effectively. Learn more at gitbook.com.

## Querying This Documentation
If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter, and the optional `goal` query parameter:

```
GET https://docs.wcproducts.com/welcome/system-and-structure/wcp-stub-rollers/overview-and-features.md?ask=<question>&goal=<endgoal>
```

`ask` is the immediate question: it should be specific, self-contained, and written in natural language.
`goal` is optional and describes the broader end goal you are ultimately trying to accomplish on behalf of the user. GitBook uses it to tailor the answer towards what is most useful for that goal.

The response will contain a direct answer to the question and relevant excerpts and sources from the documentation.

Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
