# Spacer and shaft-collar references

Use the same reference in the clips, the parts list and the print catalogue. Quantities are for one rover.

SP01–SP08 match the existing dot IDs. SP09–SP12 are guide references only; these pieces have no dot marking. LK codes identify purchased shaft collars (also called lock rings), not printed parts.

| Ref | Part | Length | Bore | Outside diameter | Qty | Mark |
|---|---|---:|---:|---:|---:|---|
| SP01 | Road wheel / inner | 7.5 mm | 5.3 mm | 7.6 mm | 6 | 1 dots |
| SP02 | Road wheel / outer | 5.5 mm | 5.3 mm | 7.6 mm | 6 | 2 dots |
| SP03 | Drive / motor side | 7.6 mm | 6.4 mm | 9 mm | 2 | 3 dots |
| SP04 | Drive / outer | 12.6 mm | 6.4 mm | 9 mm | 2 | 4 dots |
| SP05 | Idler / inner | 15.4 mm | 8.4 mm | 12 mm | 2 | 5 dots |
| SP06 | Idler / outer | 13.4 mm | 8.4 mm | 12 mm | 2 | 6 dots |
| SP07 | Idler / inner retainer | 6.3 mm | 8.4 mm | 12 mm | 2 | 7 dots |
| SP08 | Idler / outer retainer | 6 mm | 8.4 mm | 12 mm | 2 | 8 dots |
| SP09 | Road wheel / centre | 18 mm | 5.3 mm | 7.6 mm | 6 | No dots |
| SP10 | Idler / centre | 3.8 mm | 8.4 mm | 12 mm | 2 | No dots |
| SP11 | Drive / bearing to collar | 3.5 mm | 6.4 mm | 9 mm | 2 | No dots |
| SP12 | Track frame / cross-member | 41 mm | 4.4 mm | 14 mm | 4 | No dots |
| LK05 | Shaft collar / lock ring | 5 mm | 5 mm | 10 mm | 12 | Buy |
| LK06 | Shaft collar / lock ring | 5 mm | 6 mm | 11 mm | 2 | Buy |
| LK08 | Shaft collar / lock ring | 8 mm | 8 mm | 16 mm | 4 | Buy |

Collar sizes are taken from the CAD envelopes. LK codes identify the dimensions in the table; they are not manufacturer part numbers.

## Matching STL files

### SP01 — Road wheel / inner

- [Left_Spacer_road_wheel_-70_inner_ID01_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_-70_inner_ID01_R24.stl)
- [Left_Spacer_road_wheel_0_inner_ID01_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_0_inner_ID01_R24.stl)
- [Left_Spacer_road_wheel_70_inner_ID01_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_70_inner_ID01_R24.stl)
- [Right_Spacer_road_wheel_-70_inner_ID01_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_-70_inner_ID01_R24.stl)
- [Right_Spacer_road_wheel_0_inner_ID01_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_0_inner_ID01_R24.stl)
- [Right_Spacer_road_wheel_70_inner_ID01_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_70_inner_ID01_R24.stl)

### SP02 — Road wheel / outer

- [Left_Spacer_road_wheel_-70_outer_ID02_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_-70_outer_ID02_R24.stl)
- [Left_Spacer_road_wheel_0_outer_ID02_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_0_outer_ID02_R24.stl)
- [Left_Spacer_road_wheel_70_outer_ID02_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_70_outer_ID02_R24.stl)
- [Right_Spacer_road_wheel_-70_outer_ID02_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_-70_outer_ID02_R24.stl)
- [Right_Spacer_road_wheel_0_outer_ID02_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_0_outer_ID02_R24.stl)
- [Right_Spacer_road_wheel_70_outer_ID02_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_70_outer_ID02_R24.stl)

### SP03 — Drive / motor side

- [Left_Spacer_drive_inner_ID03_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_drive_inner_ID03_R24.stl)
- [Right_Spacer_drive_inner_ID03_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_drive_inner_ID03_R24.stl)

### SP04 — Drive / outer

- [Left_Spacer_drive_outer_HEX12_L12.6_ID04_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_drive_outer_HEX12_L12.6_ID04_R24.stl)
- [Right_Spacer_drive_outer_HEX12_L12.6_ID04_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_drive_outer_HEX12_L12.6_ID04_R24.stl)

### SP05 — Idler / inner

- [Left_Spacer_tensioner_inner_ID05_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_tensioner_inner_ID05_R24.stl)
- [Right_Spacer_tensioner_inner_ID05_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_tensioner_inner_ID05_R24.stl)

### SP06 — Idler / outer

- [Left_Spacer_tensioner_outer_ID06_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_tensioner_outer_ID06_R24.stl)
- [Right_Spacer_tensioner_outer_ID06_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_tensioner_outer_ID06_R24.stl)

### SP07 — Idler / inner retainer

- [Left_Spacer_tensioner_retainer_inner_ID07_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_tensioner_retainer_inner_ID07_R24.stl)
- [Right_Spacer_tensioner_retainer_inner_ID07_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_tensioner_retainer_inner_ID07_R24.stl)

### SP08 — Idler / outer retainer

- [Left_Spacer_tensioner_retainer_outer_ID08_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_tensioner_retainer_outer_ID08_R24.stl)
- [Right_Spacer_tensioner_retainer_outer_ID08_R24](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_tensioner_retainer_outer_ID08_R24.stl)

### SP09 — Road wheel / centre

- [Left_Spacer_road_wheel_-70_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_-70_center.stl)
- [Left_Spacer_road_wheel_0_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_0_center.stl)
- [Left_Spacer_road_wheel_70_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_road_wheel_70_center.stl)
- [Right_Spacer_road_wheel_-70_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_-70_center.stl)
- [Right_Spacer_road_wheel_0_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_0_center.stl)
- [Right_Spacer_road_wheel_70_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_road_wheel_70_center.stl)

### SP10 — Idler / centre

- [Left_Spacer_tensioner_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_tensioner_center.stl)
- [Right_Spacer_tensioner_center](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_tensioner_center.stl)

### SP11 — Drive / bearing to collar

- [Left_Drive_bearing_to_collar_spacer_R12_C1](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Drive_bearing_to_collar_spacer_R12_C1.stl)
- [Right_Drive_bearing_to_collar_spacer_R12_C1](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Drive_bearing_to_collar_spacer_R12_C1.stl)

### SP12 — Track frame / cross-member

- [Left_Spacer_cross_member_-40](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_cross_member_-40.stl)
- [Left_Spacer_cross_member_40](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Left_Spacer_cross_member_40.stl)
- [Right_Spacer_cross_member_-40](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_cross_member_-40.stl)
- [Right_Spacer_cross_member_40](https://github.com/metrox-eth/moss/releases/download/v0.6-r92/Right_Spacer_cross_member_40.stl)

