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When your project demands a reliable right-angle power transmission without the weight and noise of metal gearing, finding a matched bevel gear pair that fits your shaft can be a real challenge. These Module 1 straight bevel gears are designed for makers, robotics builders, and mechanical DIY enthusiasts who need a precise 90° 1:2 gear ratio in a compact, corrosion-resistant package.
Each set consists of a matched pinion and wheel pair machined to Module 1 (1mm tooth pitch) standards. The gears are molded from engineering-grade nylon in a distinctive blue finish, offering a bore range of 5–12mm (approx. 0.20–0.47 in) to suit common motor and shaft diameters. Tooth counts span 15 to 40 teeth across the available models, with overall gear diameters typically ranging from 15mm to 40mm (approx. 0.59–1.57 in).
Typical use cases include desktop CNC router axis drives, small robotic arm joints requiring a 2:1 speed reduction, and custom 3D printer extruder gearboxes — all scenarios where a low-noise straight bevel gear module 1 nylon pair outperforms heavier metal alternatives.
Each listing ships as a pre-matched pinion-and-wheel set engineered for a precise 90° 1:2 transmission ratio, eliminating the guesswork of sourcing compatible bevel gears separately.
Molded from nylon for a favorable strength-to-weight ratio, inherent lubricity, and resistance to moisture and common workshop chemicals — no additional lubrication required for light-duty applications.
Nylon-on-nylon tooth engagement significantly reduces operational noise compared to metal gear pairs, making these ideal for indoor robotics, desktop machines, and noise-sensitive environments.
Available bore diameters of 5mm, 6mm, 8mm, 10mm, and 12mm cover the most common motor shaft and rod sizes used in DIY and light industrial builds.
Nylon construction keeps individual gear weight low — typically a fraction of equivalent steel gears — making these a practical choice for robotic arms, drones, and portable mechanisms.
Choose from Module 1 models with 15, 20, 30, or 40 teeth on the wheel gear to match your torque and speed requirements. Multi-pack quantities (1–5 pcs) available for prototyping or replacement stock.
| Module | 1 (1mm tooth pitch) |
|---|---|
| Gear Ratio | 1:2 |
| Shaft Angle | 90° |
| Tooth Count (Wheel) | 15T / 20T / 30T / 40T (see variant options) |
| Bore Diameter | 5mm / 6mm / 8mm / 10mm / 12mm (see variant options) |
| Outer Diameter | See variant options |
| Material | Engineering-grade nylon |
| Color / Finish | Blue |
| Gear Type | Straight bevel gear |
| Pressure Angle | See variant options |
| Package Quantity | 1 / 2 / 3 / 4 / 5 pcs (matched pairs) |
| Weight per Pair | See variant options |
The tooth count on the wheel gear determines the gear ratio in combination with the pinion. All models in this listing are pre-matched at a 1:2 ratio, so the pinion tooth count is always half the wheel count. Choose a higher tooth count (e.g., 40T) for smoother, quieter operation at higher speeds; choose a lower count (e.g., 15T) for more compact assemblies where space is limited.
Select the bore diameter that matches your motor or drive shaft. Available options are 5mm, 6mm, 8mm, 10mm, and 12mm. If your shaft is metric and falls between these sizes, you can use a shaft collar or set screw hub to adapt — or contact us to confirm fitment before ordering.
These nylon bevel gears are well-suited for light-to-medium duty applications such as desktop robotics, small CNC machines, 3D printer mechanisms, and educational automation projects. For heavy-load or high-torque industrial applications, metal bevel gears would be more appropriate. If you are unsure whether nylon is suitable for your load requirements, please contact us with your torque and speed specifications.
Nylon has inherent self-lubricating properties, so these gears can run dry in most light-duty applications. For continuous-duty or higher-speed use, a small amount of dry PTFE lubricant or light grease can extend service life. Avoid petroleum-based oils that may degrade nylon over time.
Yes. Nylon is inherently resistant to moisture, mild acids, and common workshop chemicals, making these gears a reliable choice for environments where metal gears might corrode. They are not recommended for prolonged immersion in water or exposure to strong solvents.
Yes. The bore is designed to fit standard metric metal shafts. These nylon gears can mesh with other Module 1 nylon gears of the same specification. Meshing nylon with metal gears of the same module is possible but may accelerate wear on the nylon gear; for matched-pair use, we recommend pairing nylon with nylon as supplied.
Each unit in the quantity selector represents one matched pair (pinion + wheel). Selecting "2 pcs" means you receive 2 matched pairs (4 gears total), and so on. This is ideal for building redundant systems, prototyping multiple assemblies, or stocking spares.
