Our RB4250 motors are temporarily out of stock through more demand than expected! We are working hard to restock ASAP (they’re likely arriving in October) – in the meantime you may backorder Saturn assemblies to secure your units, or standalone Saturn gearboxes are still available!
Some things are simply meant to be together. The Ranglebox Saturn 19:1 gearbox and RB4250 1000KV motor are some of those things. What do you get when you combine a rugged planetary reducer and a bespoke brushless outrunner motor? You get a precision ready-to-run drive unit packing serious power, and one that looks pretty snazzy too!
Read more about the Saturn 19:1 and RB4250 on their respective product pages. You’ll also need an ESC to run your Saturn combo, and we have the Saturn AM32 80A ESC for that too!
When you order a preassembled Saturn system, you’re getting a combo built to our own standards, which means it’s built to last. We pack the gearbox with grease, threadlock the M3 motor mounting screws and ensure everything spins freely. All you need to do is drop the unit into your project!
A single package contains:
- 1x gearbox + motor assembly
- 1x 4mm full length steel shaft key
- 1x M5*10 high tensile caphead screw and M5*25mm washer (a shaft end bolt)
- 3x female 3.5mm connectors (for ESC wires)
The key technical details are:
- Dimensions (W*H*L): 42*42*104.5mm + 50mm shaft
- Shaft dimensions (D*L): ⌀12*50mm + 4mm keyslot and M5 end thread
- Weight: 550g
- Mounting holes: M5x8 (7mm deep) for flat-mounting, M5x4 (10mm deep) for face-mounting
- Input voltage: 2-6s (8-24V)
- Operational current draw: 10-30A
- Current max: ~50A (estimated)
- KV rating (RPM per volt): 1000 (e.g. ~12,000RPM @ 12V)
- Wires: 16AWG 150mm long (with 3.5mm bullet connectors)
Click here to download a 3D model of the Saturn combo! (opens Google Drive)
Essential dimensions:
The Ranglebox Saturn range is set to expand. We already have ⌀80mm and ⌀100mm wheels ready to combine with this gearbox and motor combo, and a chunky AM32 ESC now available too!
Long-term Ranglebox customers may recall our popular Saturn-16 and 775 motor from 2015-2017. The new Saturn 19:1 gearbox and brushless motor are spiritual successors to the old favourites. Some dimensions have been carried over, but bolt pattern spacing and overall dimensions have changed since then. Please treat this unit as a new design, and check the dimensions above carefully. If you were a customer then too, thank you!
