1.5 Mod Spur Gear With 25 Teeth Step Bore 20mm Hardened 45 Steel Motor Gear With Set Screws For DIY Gearhead Toy Builds And Heavy Duty Gearbox Projects

1.5 Mod Spur Gear, 25T, 20mm Step Bore, Hardened #45 Steel
✔️ 1Pcs, 1.5Mod spur gear, 12T-80T range, 12mm thick, hardened

This compact spur gear is built from #45 steel and hardened for durability. It features a 20mm step bore and 1.5 mod tooth pitch, making it a solid choice for DIY gearhead projects, hobby robotics, and heavy-duty gearbox builds where reliable meshing and secure shaft mounting matter.

✅ Tooth range: 12T-80T
✅ Tooth thickness: 12mm
✅ Total height: 20mm
✅ Material: #45 steel, hardened teeth
✅ Fixing set screw: M5x5
✅ Package: 1Pcs

💡 What is a long-tail question for this gear and why does it matter?

It's handy for buyers to see practical use cases at a glance.

- Handy for hobby robotics and DIY gearbox builds
- Compatible with 1.5Mod drive trains and 20mm shafts
- Hardened teeth resist wear under load
- Setscrew fixed to shaft with M5 screw for secure mounting
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