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When your build demands a reliable right-angle drive — whether you're routing power around a corner in a robot chassis, a CNC axis, or a custom gearbox — a mismatched or undersized bevel gear is the fastest way to lose torque and accuracy. These metal bevel gears are engineered for makers, mechanical engineers, and DIY builders who need a dependable 90° 1:1 transmission solution without compromise.
Each gear is machined from metal (typically brass or steel alloy depending on variant) and is available across six module sizes — 1 Mod, 1.5 Mod, 2 Mod, 2.5 Mod, 3 Mod, and 4 Mod — with tooth counts of 15T, 20T, 25T, and 30T per size. Pitch diameters range from approximately 15 mm (0.59 in) for 1 Mod 15T up to 120 mm (4.72 in) for 4 Mod 30T. Bore diameter varies by variant — see variant options for exact bore specs.
Typical use cases include: 90° power redirection in robotics and automation platforms, right-angle drives in DIY CNC router Z-axis assemblies, and compact gearbox builds for RC vehicles and custom mechanical projects requiring a 1:1 bevel gear pair.
| Module (Mod) | 1 / 1.5 / 2 / 2.5 / 3 / 4 |
|---|---|
| Tooth Count | 15T / 20T / 25T / 30T |
| Pressure Angle | 20° |
| Shaft Angle | 90° |
| Gear Ratio | 1:1 |
| Material | Metal alloy (see variant options) |
| Pitch Diameter Range | ~15 mm – ~120 mm (0.59" – 4.72") |
| Bore Diameter | See variant options |
| Hub / Boss Diameter | See variant options |
| Face Width | See variant options |
| Finish | See variant options |
| Sold As | 1 piece per unit |
The module (Mod) determines the size of each tooth and must match between the two mating gears. A higher Mod means larger, stronger teeth suited for higher torque. The tooth count (15T–30T) affects the pitch diameter — more teeth means a larger gear. For a 1:1 ratio, both gears in the pair must have the same Mod and the same tooth count.
Yes. A bevel gear pair requires two gears of the same Mod and tooth count to achieve the 90° 1:1 transmission. Each listing sells one piece. Select the quantity of 2 if you need a complete pair, or order two separate units of the same variant.
Bore diameter varies by Mod size and tooth count. Please refer to the variant options or contact us to confirm the bore size for your selected variant before ordering. We recommend measuring your shaft diameter precisely before purchase.
These metal bevel gears are suitable for light-to-medium duty continuous operation such as robotics, CNC drives, and motorized DIY builds. For heavy industrial loads or high-RPM applications, please contact us to confirm suitability for your specific torque and speed requirements.
Corrosion resistance depends on the specific material and finish of the variant selected. Metal alloy gears may benefit from light lubrication in humid or outdoor environments. For applications requiring high corrosion resistance, contact us to confirm the material specification of your chosen variant.
No. Bevel gears must be paired with the same module size to mesh correctly. Mixing different Mod gears will result in incorrect tooth engagement, noise, and rapid wear. Always select the same Mod for both gears in your drive pair.
Within the same module, a higher tooth count (e.g. 30T vs 15T) results in a larger pitch diameter and a physically bigger gear. Both will produce a 1:1 ratio when paired with an identical gear. Choose a higher tooth count when you need a larger gear diameter for your shaft spacing, or a lower tooth count for a more compact build.
