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When your motion system demands a quiet, corrosion-resistant pinion that won't add unnecessary mass, standard metal gears become a liability. Makers, robotics builders, and small-machine designers working with compact drive trains need a 1 Mod 15 Teeth spur gear that fits standard motor shafts without modification. This blue nylon stepped-bore pinion is engineered for exactly that use case — delivering reliable mesh engagement in lightweight assemblies where noise reduction and chemical resistance matter.
Each gear is machined from engineering-grade blue nylon (PA66-class), offering a good balance of rigidity and self-lubrication. The module is 1M (1 mm/tooth), tooth count is 15T, and the stepped bore accommodates either a 4 mm or 5 mm shaft depending on the variant selected. Overall gear outer diameter is approximately 17 mm (≈0.67 in), face width typically 10–15 mm (≈0.39–0.59 in), and the step shoulder allows secure axial positioning without additional collars in most applications.
Typical use cases include: compact 1 Mod gear train assemblies in desktop CNC routers and pen plotters; pinion-rack drive systems for lightweight linear actuators; and motor-output stages in educational robotics kits and 3D printer extruder drives where a nylon 1M 15T spur gear reduces audible mesh noise versus steel alternatives.
Manufactured from PA66-class nylon for consistent dimensional stability, self-lubrication, and resistance to oils and mild chemicals — no external grease required in most low-load applications.
Module 1, 15-tooth involute tooth form ensures smooth, low-backlash mesh with any standard 1M mating gear or rack. Pressure angle 20° (standard), suitable for both parallel-shaft and simple gear-train layouts.
The integrated bore step provides a positive axial shoulder against motor shaft flanges or retaining clips, reducing the need for additional spacers in compact assemblies. Available in 4 mm and 5 mm bore diameters.
Nylon-on-metal or nylon-on-nylon mesh runs significantly quieter than all-steel gear pairs — ideal for desktop machines, educational robots, and any application where acoustic performance is a design criterion.
Nylon density is roughly one-seventh that of steel, reducing rotational inertia and overall system weight — a meaningful advantage in battery-powered or servo-driven mechanisms where mass budget is tight.
Available in 1, 2, 5, or 10-piece packs to match prototyping or small-batch production needs. Multi-piece packs offer better per-unit value for builds requiring multiple identical pinions.
| Module | 1M (1 mm per tooth) |
|---|---|
| Number of Teeth | 15T |
| Pressure Angle | 20° |
| Pitch Diameter | 15 mm (0.59 in) |
| Outer Diameter (approx.) | ~17 mm (~0.67 in) |
| Face Width | See variant options |
| Bore Diameter | 4 mm or 5 mm (select variant) |
| Bore Type | Stepped bore |
| Material | Engineering nylon (PA66-class) |
| Color | Blue |
| Gear Type | Spur gear (parallel axis) |
| Hub / Step | Yes — integrated step shoulder |
| Lubrication | Self-lubricating (dry operation capable) |
| Max Recommended Load | See variant options |
| Pack Quantity | 1 / 2 / 5 / 10 PCS (select variant) |
Match the bore to your motor or drive shaft diameter. A 4 mm bore fits common N20, 130-class, and many stepper motor output shafts used in desktop CNC and robotics. A 5 mm bore suits NEMA 17 stepper motors and many DC gear-motor shafts. If your shaft is between sizes, always choose the smaller bore and ream or use a shaft adapter — do not force a larger bore onto a smaller shaft.
Yes. Nylon-on-metal meshing is a common and intentional design choice. The nylon gear acts as the sacrificial element, wearing preferentially to protect the metal gear. This pairing also reduces noise and eliminates the need for lubrication in many low-to-medium load applications. Ensure the mating gear is also Module 1 with a 20° pressure angle for correct mesh.
PA66-class nylon spur gears at 1M 15T are suited for light-to-moderate loads typical of robotics, 3D printer extruders, and small automation mechanisms. Exact torque capacity depends on operating speed, temperature, and mating gear material. For high-torque or continuous-duty industrial applications, consider a metal gear alternative. Contact us to confirm suitability for your specific load case.
Nylon has good inherent resistance to moisture, oils, and mild chemicals, making it suitable for humid environments where steel gears would corrode. However, prolonged water immersion can cause nylon to absorb moisture and swell slightly, which may affect dimensional tolerances. For fully submerged or wash-down applications, verify dimensional stability under your specific conditions.
Yes — Module 1 is an internationally standardized gear metric. Any 1M gear or rack with a 20° pressure angle will mesh correctly with this pinion regardless of brand, provided the tooth profile follows the standard involute form. Always verify the module and pressure angle of your mating component before assembly.
The stepped bore provides axial positioning. For radial retention, a set screw, retaining clip, or shaft collar is typically used depending on your assembly design. This gear does not include a pre-drilled set screw hole as standard — if your application requires one, it can usually be added with a drill press. Contact us if you need a custom configuration.
For single-axis prototyping or replacement, the 1 PCS pack is sufficient. If you are building a multi-axis robot or a machine with several identical drive stages, the 5 or 10 PCS pack offers better per-unit value and ensures you have spares on hand. The 2 PCS pack suits dual-motor or mirrored-drive configurations.
