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When a noisy metal gear or an oversized drive component is slowing down your build, makers and engineers turn to nylon spur gears for a quieter, lighter solution. This 1 Mod 35-tooth blue nylon spur gear with stepped bore is designed for hobbyists, robotics builders, and small-machine designers who need reliable power transmission without the weight or corrosion risk of steel.
Each gear is machined from engineering-grade blue nylon (PA66 or equivalent), offering a good balance of rigidity and self-lubrication. The module is 1 (Mod 1), tooth count is 35T, and the stepped bore accommodates shaft diameters from 6 mm (0.24 in) to 17 mm (0.67 in) depending on the variant selected. Outside diameter is approximately 37 mm (1.46 in); face width is typically 10–15 mm (0.39–0.59 in).
Typical use cases include 3D printer extruder and axis drives, small CNC router feed mechanisms, lightweight robotic arm joints, and DIY conveyor or winch systems where a low-noise 1 mod plastic pinion gear is preferred over metal alternatives.
| Module | 1 (Mod 1) |
|---|---|
| Tooth Count | 35 Teeth |
| Pitch Diameter | 35 mm (1.38 in) |
| Outside Diameter | Approx. 37 mm (1.46 in) |
| Bore Diameter | 6 / 8 / 10 / 12 / 14 / 15 / 16 / 17 mm — See variant options |
| Face Width | Typically 10–15 mm (0.39–0.59 in) |
| Pressure Angle | 20° |
| Material | Engineering Nylon (PA66 or equivalent) |
| Color | Blue |
| Gear Type | Spur Gear (Pinion) |
| Hub Style | Stepped bore with set-screw flat (See variant options) |
| Packing Quantity | 1 PCS / 2 PCS / 5 PCS — See variant options |
Select the bore that matches your shaft diameter exactly. Available options are 6, 8, 10, 12, 14, 15, 16, and 17 mm. If your shaft is metric and falls between listed sizes, choose the next size up and use a set screw or keyway adapter to secure the gear. Do not force a gear onto an oversized shaft.
Yes. Any gear or rack with Module 1 (Mod 1) and a 20° pressure angle will mesh correctly with this gear. Tooth count does not need to match — only the module must be the same. Verify your existing components are Mod 1 before ordering.
Engineering nylon (PA66) has a tensile strength of approximately 80 MPa and is well-suited for light-to-medium torque applications such as 3D printer drives, small robotics, and hobby CNC machines. For high-torque or high-temperature environments above ~80 °C (176 °F), a metal gear is recommended instead.
Yes. Nylon is inherently resistant to rust and most mild chemicals, making it suitable for humid environments or applications where occasional contact with water or light oils is expected. It is not rated for immersion in strong acids or solvents.
Nylon is self-lubricating under normal operating conditions, so external grease or oil is not required for most light-duty applications. For higher speeds or loads, a small amount of dry PTFE lubricant or light machine oil can extend service life without degrading the nylon.
Choose 1 PCS if you need a single replacement or are prototyping. Select 2 PCS to outfit two axes or keep one as a spare. The 5 PCS pack offers the best per-unit value and is ideal for batch builds, classroom projects, or stocking a workshop with ready-to-use pinion gears.
For a Mod 1 gear with 35 teeth, the pitch diameter is 35 mm (Module × Teeth = 1 × 35). This is the theoretical circle at which two meshing gears make contact. Use it to calculate center distance: add the pitch diameters of both mating gears and divide by 2 to find the required shaft-to-shaft spacing.
