The 2 Motor Gearbox - Through Bore is compatible with the REV ION System. This two motor into one output gearbox allows the user to adjust the gear ratio by changing pinion and cluster gear (12:60, 18:54, 24:48, or 36:36). The output shaft is 1/2in Hex through bore, and output gears have a MAXSpline bore. The motor plate contains 2 pairs of 2in pitch #10-32 tapped holes for mounting the REV Through Bore Encoder, and the output plate contains an array of holes for mounting to structure, as well as mounting as an input to the MAXPlanetary. The 5:1 Ratio (60:12) can be micro adjusted slightly larger by swapping the 12T pinion with 11T or 10T.
Motors and gears are not included. Purchasing a Base Kit and Ratio Gear Bundle are both required to assemble a full gearbox. See tables below for more information.
Kit Contents
2 Motor Gearbox - Through Bore - Base Kit (REV-21-2099):
| SKU | PRODUCT NAME | QUANTITY |
| 2 Motor Gearbox Hardware Pack | QTY 1 | |
| 2 Motor Gearbox Motor Plate | QTY 1 | |
| 2 Motor Gearbox Bearing Plate | QTY 1 | |
| 2 Motor Gearbox Spacer Pack | QTY 1 | |
| REV-21-2079 | 1/2in Hex Through Bore Shaft | QTY 1 |
| REV-21-1879 | 8mm to 1/2in Hex Adapter | QTY 2 |
| Bearing, 30mm ID, 42mm OD, 7mm Thick, Shielded, Flanged | QTY 2 |
2 Motor Gearbox - Through Bore - Ratio Gear Bundles *Purchasing a Base Kit and Ratio Gear Bundle are both required to assemble a full gearbox
1:1 Ratio Gear Bundle (REV-25-2901):
| SKU | PRODUCT NAME | QUANTITY |
| REV-21-1929 | 20DP Gear - 1/2in Hex - 36T | QTY 2 |
| REV-21-3012 | 20DP Gear - MAXSpline - 36T | QTY 1 |
2:1 Ratio Gear Bundle (REV-25-2902):
| SKU | PRODUCT NAME | QUANTITY |
| REV-21-1923 | 20DP Gear - 1/2in Hex - 24T | QTY 2 |
| REV-21-3018 | 20DP Gear - MAXSpline - 48T | QTY 1 |
3:1 Ratio Gear Bundle (REV-25-2903):
| SKU | PRODUCT NAME | QUANTITY |
| REV-21-1920 | 20DP Gear - 1/2in Hex - 18T | QTY 2 |
| REV-21-3021 | 20DP Gear - MAXSpline - 54T | QTY 1 |
5:1 Ratio Gear Bundle (REV-25-2905):
| SKU | PRODUCT NAME | QUANTITY |
| REV-21-2000 | 20DP NEO Pinion Gear - 12 Tooth | QTY 2 |
| REV-21-3024 | 20DP Gear - MAXSpline - 60T | QTY 1 |
6:1 Ratio Gear Bundle (REV-25-2906):
| SKU | PRODUCT NAME | QUANTITY |
| REV-21-1998 | 20DP NEO Pinion Gear - 10 Tooth | QTY 2 |
| REV-21-3024 | 20DP Gear - MAXSpline - 60T | QTY 1 |
