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When a metal gear is overkill and a flimsy plastic one won't cut it, makers and engineers reach for a nylon spur gear that balances weight, noise, and durability. This 1 Mod 22-tooth blue nylon spur gear with a stepped bore is designed for hobbyists, robotics builders, and small-machine designers who need a reliable, low-backlash pinion without the weight penalty of steel.
Each gear is machined from engineering-grade blue nylon (PA66 or equivalent), offering a module of 1 (1M) with 22 teeth and a stepped bore ranging from 4 mm to 12 mm (approximately 0.157 in to 0.472 in). The stepped hub design allows the gear to seat securely on shafts of varying diameters without additional machining. Outer diameter is approximately 24 mm (0.94 in); face width is typically 10–15 mm (0.39–0.59 in).
Typical use cases include 3D printer extruder drives requiring a quiet 1M pinion gear, small robotic arm joints needing a lightweight nylon spur gear with stepped bore, and DIY CNC or automation projects where a plastic pinion gear with 22 teeth reduces system noise and weight.
Manufactured from PA66-class nylon for consistent dimensional accuracy, self-lubricating properties, and resistance to wear under continuous cyclic loading.
The integrated step hub accommodates shaft diameters from 4 mm to 12 mm (0.157–0.472 in), enabling direct mounting on a wide range of motor and drive shafts without custom machining.
Nylon-on-metal or nylon-on-nylon meshing significantly reduces gear noise compared to all-metal drives — ideal for desktop robots, printers, and enclosed automation enclosures.
At 1M / 22T, the gear's compact form factor keeps rotating mass low, reducing motor load and improving response time in servo-driven or stepper-driven systems.
Conforms to the ISO/DIN Module 1 standard, ensuring interchangeability with any 1M rack, pinion, or mating gear in your existing drivetrain.
Available in 1, 2, 5, or 10-piece packs — order a single replacement or stock up for a full build run without paying for excess inventory.
| Module | 1 (1M) |
|---|---|
| Number of Teeth | 22 |
| Bore Diameter | See variant options (4 / 5 / 6 / 6.35 / 7 / 8 / 10 / 12 mm) |
| Outer Diameter (OD) | Approx. 24 mm (0.94 in) |
| Face Width | Typically 10–15 mm (0.39–0.59 in) |
| Hub / Step Design | Stepped bore hub |
| Material | Engineering nylon (PA66-class) |
| Color | Blue |
| Pressure Angle | 20° |
| Gear Type | Spur (straight tooth) |
| Packing Quantity | See variant options (1 / 2 / 5 / 10 PCS) |
| Weight (per piece) | See variant options |
Select the bore that matches your motor or drive shaft diameter exactly. Available options are 4, 5, 6, 6.35, 7, 8, 10, and 12 mm. The 6.35 mm bore is sized for ¼-inch shafts common in North American hobby motors. If your shaft falls between sizes, choose the next size up and use a set screw or shaft collar to secure the gear.
Nylon gears offer lower tensile strength than steel or aluminum but are well-suited for light-to-medium duty applications such as 3D printers, small robots, and desktop automation. They act as a sacrificial element — if the drivetrain jams, the nylon gear absorbs the shock before damaging a motor or frame. For high-torque or continuous industrial loads, consult a metal gear option.
Yes. Engineering nylon does not rust or corrode and is resistant to many common lubricants, mild acids, and oils. It is suitable for humid environments and light outdoor enclosures. Avoid prolonged exposure to strong solvents or UV radiation without additional protection.
Yes, provided your rack or mating gear is also Module 1 (1M) with a 20° pressure angle — the most common standard for hobby and light industrial drives. Verify the module of your existing components before ordering. Module 1 gears are not interchangeable with Module 0.5, 1.5, or 2 gears.
The stepped bore provides axial location on the shaft. For torque transmission, a set screw (grub screw) is recommended — most hubs include a pre-drilled set screw hole. Keyway slots are not standard on this model. For high-torque applications, consider adding a shaft flat or using a shaft collar in addition to the set screw.
Order 1 PCS for a single replacement or prototype test. Choose 2 PCS if you are building a mirrored or dual-axis system. Select 5 or 10 PCS for batch builds, classroom projects, or to keep spares on hand — the per-unit cost decreases with larger pack sizes, making multi-packs the economical choice for production runs.
Nylon is inherently self-lubricating, so dry operation is acceptable for light loads and intermittent duty cycles. For continuous or higher-speed applications, a light application of PTFE-based or silicone grease extends service life and reduces operating temperature. Avoid petroleum-based greases that may degrade nylon over time.
