# General Specs

## How does the WCP Friction Brake Work?

The Brake Cone Assembly is attached to the pneumatic piston via a shoulder bolt passing through a captured bearing. This captured bearing allows the Brake Cone to freely spin when the piston is retracted. The Brake Cone is then connect to an extended shaft from a gearbox or the 8mm SplineXS adapter to connect directly to the Kraken X60 motor. When the cylinder extends, the Brake Cone is pressed into the Brake Pad attached to the gearbox plate. The friction between the Brake Pad and the Brake Cone cause the braking for the gearbox.

<figure><img src="/files/EvAmtPYyZUKFxDa6JKu1" alt="" width="563"><figcaption></figcaption></figure>

## Holding Torque

The following values were found using the WCP Friction Brake, unmodified, and with the WCP Friction Brake Pad. The pneumatic cylinder was run at 60 psi.&#x20;

{% hint style="info" %}
The numbers were measured directly at the brake. These are without a motor attached. Adding a motor in brake mode will increase these values.
{% endhint %}

Holding Torque&#x20;

* Nominal - 1.5 ft-lbs&#x20;
* Min - 1 ft-lbs&#x20;
* Max - 2 ft-lbs


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