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When a noisy metal gear or an ill-fitting bore ruins your build, you need a drop-in replacement that just works. This 1 Mod 24-tooth blue nylon spur gear is engineered for makers, robotics enthusiasts, and small-machine builders who demand reliable, low-backlash power transmission without the weight or corrosion risk of steel.
Each gear is manufactured from engineering-grade blue nylon (PA66), offering a good balance of rigidity and self-lubrication. The module is 1M with 24 teeth, and the stepped bore accommodates shaft diameters from 5 mm (~0.197 in) up to 12 mm (~0.472 in), covering the most common motor and shaft sizes in the hobbyist and light-industrial range. Overall pitch diameter is 24 mm (0.945 in); outside diameter is approximately 26 mm (1.02 in).
Typical use cases include 3D printer extruder drives requiring a quiet 1 mod 24-tooth nylon pinion gear, small robotic arm joints needing a lightweight plastic spur gear with stepped bore, and DIY CNC or automation projects where a corrosion-resistant nylon gear module 1 reduces maintenance intervals.
Manufactured from PA66 nylon for a self-lubricating, low-friction surface that reduces wear on mating gears and operates quietly under continuous load.
The stepped hub accommodates seven bore sizes — 5, 6, 6.35, 7, 8, 10, and 12 mm — letting you match the gear to your exact shaft diameter without custom machining.
Nylon construction keeps rotating mass low, reducing motor load and improving response time in servo-driven and stepper-driven applications.
Unlike steel pinions, nylon does not rust or oxidize, making these gears suitable for humid environments, food-adjacent machinery, and outdoor hobby builds.
The inherent damping properties of nylon absorb vibration and reduce gear mesh noise — ideal for desktop robots, camera sliders, and quiet-running automation rigs.
Available in 1, 2, 5, and 10-piece packs so you can order a single replacement or stock up for a multi-axis project at a lower per-unit cost.
| Module | 1M (Module 1) |
|---|---|
| Number of Teeth | 24T |
| Pitch Diameter | 24 mm (0.945 in) |
| Outside Diameter (approx.) | 26 mm (1.02 in) |
| Bore Diameter Options | 5 mm / 6 mm / 6.35 mm / 7 mm / 8 mm / 10 mm / 12 mm |
| Face Width | See variant options |
| Hub Style | Stepped bore |
| Material | PA66 Engineering Nylon |
| Color | Blue |
| Pressure Angle | 20 deg |
| Gear Type | Spur (straight tooth) |
| Packing Quantity | 1 / 2 / 5 / 10 PCS (select above) |
| Weight (per piece, approx.) | See variant options |
Measure your motor or drive shaft diameter with a caliper. Select the bore option that matches exactly — for example, choose 6.35 mm for a standard 1/4-inch (imperial) shaft. The stepped hub design means the bore is pre-machined; no reaming is required for the listed sizes.
Module (M) is the standardized metric tooth-size system. A Module 1 gear has a pitch of 1 mm per tooth. This gear will mesh correctly with any other Module 1 spur gear, rack, or pinion — regardless of tooth count — as long as the pressure angle is also 20 degrees. It will NOT mesh with Module 0.5, Module 1.5, or imperial DP gears.
PA66 nylon gears handle moderate torque loads well and are self-lubricating, which reduces wear over time. They are best suited for light-to-medium duty applications such as 3D printers, small robots, and hobby CNC machines. For high-torque or high-temperature environments (above ~120 C / 248 F), a metal gear is recommended.
Yes. Nylon does not rust or corrode, making it a reliable choice for humid workshops, outdoor hobby builds, and light food-adjacent machinery. Note that prolonged submersion in water can cause slight dimensional swelling in nylon; for fully submerged applications, confirm suitability with your specific load and temperature requirements.
PA66 nylon is inherently self-lubricating, so these gears can run dry in most light-duty applications. For higher speeds or continuous-duty cycles, a small amount of dry PTFE lubricant or light grease can extend service life and further reduce noise. Avoid petroleum-based oils that may degrade nylon over time.
The stepped bore provides a close-tolerance fit on the shaft. Depending on the variant, a set screw hole may be present in the hub. Set screws, if applicable, are typically M3 or M4; contact us to confirm for your selected bore size.
Yes — a 1M 24-tooth nylon pinion gear is a common choice for extruder drives and filament feed mechanisms where low noise and light weight are priorities. Verify that your extruder mating gear is also Module 1 and that the bore matches your motor shaft (typically 5 mm for NEMA 17 motors).
