> 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/channel-drivetrain-build-guide/drive-shaft-assembly.md).

# Drive Shaft Assembly

### Drive Shaft Assembly Parts Required

| **PART NUMBER**                                         | **DESCRIPTION**              | **QTY.** |
| ------------------------------------------------------- | ---------------------------- | -------- |
| [REV-41-1324](https://www.revrobotics.com/rev-41-1324/) | 3MM SPACER                   | 4        |
| [REV-41-1326](https://www.revrobotics.com/rev-41-1326/) | THROUGH BORE BEARING - SHORT | 3        |
| [REV-41-1327](https://www.revrobotics.com/rev-41-1327/) | SHAFT COLLAR                 | 2        |
| [REV-41-1338](https://www.revrobotics.com/rev-41-1338/) | 10 TOOTH #25 SPROCKET        | 1        |
| [REV-41-1348](https://www.revrobotics.com/rev-41-1348/) | 5MM X 90MM HEX SHAFT         | 1        |
| [REV-41-1190](https://www.revrobotics.com/rev-41-1190/) | 90MM OMNI WHEEL              | 1        |

### Drive Shaft Asssembly Steps

| DRIVE SHAFT ASSEMBLY STEPS       |                                                                                                                                                                   |
| -------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------- |
| ![](/files/-Me1vK5FU3bN-HF9pHjg) | <p>Add a Shaft Collar flush to the end of the 5mm x 90mm Hex Shaft.</p><p>Tighten the Shaft Collar.</p>                                                           |
| ![](/files/-Me1va_h6hq40HQ22c3w) | Slide a 90mm Omni Wheel onto the shaft.                                                                                                                           |
| ![](/files/-Me1vxaUVUbkdtx2Yzw6) | <p>Slide a Through Bore Bearing – Short onto the shaft.</p><p>Note the smaller portion of the bearing faces towards the Shaft Collar.</p>                         |
| ![](/files/-Me1wJrwI1dmm1h-60zu) | <p>Slide a Through Bore Bearing – Short onto the shaft.</p><p>Note the smaller portion of the bearing faces towards the Shaft Collar.</p>                         |
| ![](/files/-Me1waVGsb7VRyxcFUfZ) | Slide a 3mm Spacer onto the shaft.                                                                                                                                |
| ![](/files/-Me1xuyoxvlBfa8qjoV0) | Slide a 10 Tooth # 25 Sprocket onto the shaft.                                                                                                                    |
| ![](/files/-Me1yBOG3brxUnvBrOPh) | Slide a Shaft Collar onto the shaft. Keep this Shaft Collar loose.                                                                                                |
| ![](/files/-Me1z1Ag2WJTiXxB7yd-) | Slide a 3mm Spacer onto the shaft.                                                                                                                                |
| ![](/files/-Me2-93Sx1asVJHAQXOB) | Slide a 3mm Spacer onto the shaft.                                                                                                                                |
| ![](/files/-Me2-QzW5v22tx7Isbtu) | Slide a 3mm Spacer onto the shaft.                                                                                                                                |
| ![](/files/-Me2-hS7rqdBzgMMKXAj) | <p>Slide a Through Bore Bearing – Short onto the shaft.</p><p>Note the smaller portion of the bearing faces away from the Shaft Collars.</p>                      |
| ![](/files/-Me2-ynfpDcVMtFEPjqr) | <p><strong>DRIVE SHAFT ASSEMBLY COMPLETE</strong><br></p><p>Repeat the above steps until there are two completed Drive Shaft Assemblies. Set aside for later.</p> |