> For the complete documentation index, see [llms.txt](https://docs.revrobotics.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.revrobotics.com/duo-build/ftc-starter-kit-gear-drivetrain/pre-loading-brackets.md).

# Pre-Loading Brackets

## Bracket Pre-Loading Parts Required

| **PART NUMBER**                                         | **DESCRIPTION**                       | **QTY.** |
| ------------------------------------------------------- | ------------------------------------- | -------- |
| [REV-41-1317](https://www.revrobotics.com/rev-41-1317/) | 15MM BEARING PILLOW BLOCK             | 16       |
| [REV-41-1321](https://www.revrobotics.com/rev-41-1321/) | 15MM PLASTIC LAP CORNER BRACKET       | 16       |
| [REV-41-1320](https://www.revrobotics.com/rev-41-1320/) | 15MM PLASTIC INSIDE CORNER BRACKET    | 8        |
| [REV-41-1313](https://www.revrobotics.com/rev-41-1313/) | 15MM PLASTIC INDEXABLE MOTION BRACKET | 4        |
| [REV-41-1623](https://www.revrobotics.com/rev-41-1623/) | ULTRAPLANETARY BENT MOUNTING BRACKET  | 2        |
| [REV-41-1624](https://www.revrobotics.com/rev-41-1624/) | ULTRAPLANETARY FLAT MOUNTING BRACKET  | 2        |
| [REV-41-1359](https://www.revrobotics.com/rev-41-1359/) | M3 X 8MM HEX CAP SCREWS               | 128      |
| [REV-41-1361](https://www.revrobotics.com/rev-41-1361/) | M3 NYLOC NUTS                         | 128      |

### Pre-Loading Lap Corner Bracket Steps 

{% hint style="warning" %}
The side of the bracket with “[ribs](/duo-build/structure/brackets.md#key-terms)” must have the Hex Cap Screw head.
{% endhint %}

|                                  |                                                                                                                                         |
| -------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/files/-MCNx86EB_09X1vrmkWU) | <p>Take a bracket and finger start one Hex Cap Screw and Nyloc Nut per hole.</p><p></p>                                                 |
| ![](/files/-MCNxhkHT6UAqtnYuThm) | <p><strong>PRE-LOADED BRACKET COMPELTE</strong></p><p>Repeat this step until you have <strong>sixteen</strong> Pre-Loaded Brackets.</p> |

### Pre-Loading Insider Corner Bracket Steps&#x20;

{% hint style="warning" %}
The side of the bracket with “[ribs](/duo-build/structure/brackets.md#key-terms)” must have the Hex Cap Screw head.
{% endhint %}

|                                  |                                                                                                                                       |
| -------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/files/-MCNXpeKDlZTtYN5LK5J) | <p>Take a bracket and finger start one Hex Cap Screw and Nyloc Nut per hole.</p><p></p>                                               |
| ![](/files/-MCNv_X2QEBoRk6yEPMW) | <p><strong>PRE-LOADED BRACKET COMPELTE</strong></p><p>Repeat this step until you have <strong>eight</strong> Pre-Loaded Brackets.</p> |

### Pre-Loading **Bearing Pillow Block** Steps&#x20;

{% hint style="warning" %}
The side of the bracket with “[ribs](/duo-build/structure/brackets.md#key-terms)” must have the Hex Cap Screw head.
{% endhint %}

|                                  |                                                                                                                                         |
| -------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/files/-MCNzqXarvcRwKWKsQX8) | <p>Take a bracket and finger start one Hex Cap Screw and Nyloc Nut per hole.</p><p></p>                                                 |
| ![](/files/-MCENatOdPYdhkS1PbeR) | <p><strong>PRE-LOADED BRACKET COMPELTE</strong></p><p>Repeat this step until you have <strong>sixteen</strong> Pre-Loaded Brackets.</p> |

### Pre-Loading Indexable Motion Bracket Steps

{% hint style="warning" %}
The side of the bracket with “[ribs](/duo-build/structure/brackets.md#key-terms)” must have the Hex Cap Screw head.
{% endhint %}

|                                                                     |                                                                                                                                      |
| ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------ |
| <img src="/files/-MJ3xyVA_pLx34Ze8gxL" alt="" data-size="original"> | Take a bracket and finger start one Hex Cap Screw and Nyloc Nut per hole.                                                            |
| <img src="/files/-MJ3yVPd-VSans8qu363" alt="" data-size="original"> | <p><strong>PRE-LOADED BRACKET COMPELTE</strong></p><p>Repeat this step until you have <strong>four</strong> Pre-Loaded Brackets.</p> |

### Pre-Loading UltraPlanetary Flat Mounting Bracket Steps&#x20;

|                                  |                                                                                                                                     |
| -------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
| ![](/files/-MCENqBkbR1mX0qFn1GW) | <p>Take a bracket and finger start one Hex Cap Screw and Nyloc Nut per hole.</p><p></p>                                             |
| ![](/files/-MCENsl9WR9RnYAvFgi6) | <p><strong>PRE-LOADED BRACKET COMPELTE</strong></p><p>Repeat this step until you have <strong>two</strong> Pre-Loaded Brackets.</p> |

### Pre-Loading UltraPlanetary Bent Mounting Bracket Steps&#x20;

|                                  |                                                                                                                                     |
| -------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
| ![](/files/-MCEO2r1N7zeTI_1F6VI) | <p>Take a bracket and finger start one Hex Cap Screw and Nyloc Nut per hole.</p><p></p>                                             |
| ![](/files/-MCEO5TdZNg902z_x7Gz) | <p><strong>PRE-LOADED BRACKET COMPELTE</strong></p><p>Repeat this step until you have <strong>two</strong> Pre-Loaded Brackets.</p> |