> 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-chain-drivetrain/traction-wheel-assembly.md).

# Traction Wheel Assembly

## Traction Wheel Assembly Parts Required 

| **PART NUMBER**                                         | **DESCRIPTION**              | **QTY.** |
| ------------------------------------------------------- | ---------------------------- | -------- |
| [REV-41-1348](https://www.revrobotics.com/rev-41-1348/) | 5MM X 90MM HEX SHAFT         | 1        |
| [REV-41-1325](https://www.revrobotics.com/rev-41-1325/) | 1.5MM SPACER                 | 1        |
| [REV-41-1324](https://www.revrobotics.com/rev-41-1324/) | 3MM SPACER                   | 3        |
| [REV-41-1323](https://www.revrobotics.com/rev-41-1323/) | 15MM SPACER                  | 1        |
| [REV-41-1326](https://www.revrobotics.com/rev-41-1326/) | THROUGH BORE BEARING - SHORT | 2        |
| [REV-41-1327](https://www.revrobotics.com/rev-41-1327/) | SHAFT COLLAR                 | 1        |
| [REV-41-1340](https://www.revrobotics.com/rev-41-1340/) | 20 TOOTH #25 SPROCKET        | 1        |
| [REV-41-1354](https://www.revrobotics.com/rev-41-1354/) | 90MM TRACTION WHEEL          | 1        |

## Traction Wheel Assembly Steps 

|                                                                     |                                                                                                                                                                          |
| ------------------------------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------ |
| <img src="/files/-MCO0XKXxyjKab8VRGfr" alt="" data-size="original"> | Slide a Through Bore Bearing – Short onto the shaft.                                                                                                                     |
| <img src="/files/-MCO1CA0EtbiQxFaeilp" alt="" data-size="original"> | Slide a 3mm Spacer onto the shaft.                                                                                                                                       |
| <img src="/files/-MCO1eV9tjRzeVomk-yw" alt="" data-size="original"> | Slide a 1.5mm Spacer onto the shaft.                                                                                                                                     |
| <img src="/files/-MCO4pVwaGGp_4toVnLC" alt="" data-size="original"> | Slide a 15mm Space onto the shaft.                                                                                                                                       |
| <img src="/files/-MMSesasUPCpvR-sNZVW" alt="" data-size="original"> | Slide a 20 Tooth #25 Sprocket onto the shaft.                                                                                                                            |
| <img src="/files/-MMSeddQHlBlhPcQc44i" alt="" data-size="original"> | Slide a 3mm Spacer onto the shaft.                                                                                                                                       |
| <img src="/files/-MMSez97AK8ZJeUbAVIz" alt="" data-size="original"> | Slide a 90mm Traction Wheel onto the shaft.                                                                                                                              |
| <img src="/files/-MMSfGdPS7P7pJyGaQyn" alt="" data-size="original"> | Slide a Shaft Collar onto the shaft.                                                                                                                                     |
| <img src="/files/-MMSfKqOnd4ywvKM3ETz" alt="" data-size="original"> | Slide a Through Bore Bearing – Short onto the shaft.                                                                                                                     |
| <img src="/files/-MMSfVRpyINKF96F_2Hb" alt="" data-size="original"> | <p><strong>Traction Wheel Assembly Complete.</strong></p><p></p><p>Repeat the steps above until you have two compete Traction Wheel Assemblies. Set aside for later.</p> |