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When a motion-control build stalls because a pinion strips under load or the bore doesn't match your shaft, the whole project stops. Engineers, makers, and automation integrators who need a dependable 1.0 module spur gear pinion — one that meshes cleanly with standard 1M racks and holds tight tolerances across repeated cycles — will find this series purpose-built for exactly that demand.
Each pinion is machined from carbon steel and finished with a zinc-plated surface for corrosion resistance. The series spans 15 to 25 teeth (15T, 16T, 17T, 18T, 20T, 24T, 25T) with bore diameters ranging from 4 mm (0.16 in) to 15 mm (0.59 in) and matching hub outer diameters from 14 mm (0.55 in) to 20 mm (0.79 in). Face widths run 14–20 mm (0.55–0.79 in) depending on the variant selected.
Typical applications include CNC router X/Y axis rack-and-pinion drives, 3D printer extruder geartrains, robotic arm joint reduction stages, and linear actuator pinion assemblies where a standard 1.0 module pitch is specified.
Available in 15T through 25T with bore options from 4 mm to 15 mm — covering the most common shaft sizes used in CNC and robotics platforms.
Machined from carbon steel for the strength needed in cyclic-load transmission applications, with a zinc-plated finish to resist surface oxidation.
Conforms to the ISO 1.0 module standard, ensuring direct interchangeability with 1M racks and mating gears from other compliant suppliers.
Order 1, 3, 5, 8, or 10 pieces per transaction — ideal for prototyping single units or stocking spares for production lines.
Involute tooth geometry machined to consistent tolerances for smooth, low-backlash engagement with standard 1M rack and pinion systems.
Suitable for single-axis linear drives, dual-axis gantry systems, and rotary-to-linear conversion stages in automation and DIY motion platforms.
| Module | 1.0 (1M) |
|---|---|
| Teeth Count (T) | 15T, 16T, 17T, 18T, 20T, 24T, 25T |
| Bore Diameter (F) | 4 mm – 15 mm (0.16 in – 0.59 in) |
| Hub Outer Diameter (A) | 14 mm – 20 mm (0.55 in – 0.79 in) |
| Face Width / Body Diameter (B) | 17 mm – 27 mm (0.67 in – 1.06 in) |
| Material | Carbon Steel |
| Surface Finish | Zinc-plated |
| Pressure Angle | 20° |
| Tooth Profile | Involute |
| Compatible Rack Module | 1.0 Module (1M) |
| Available Quantities | 1 / 3 / 5 / 8 / 10 pcs |
| Weight (per piece) | See variant options |
The teeth count determines the gear ratio when paired with a rack or mating gear. For faster linear travel with less torque, choose a higher tooth count (e.g., 24T or 25T). For more torque and slower travel, choose a lower count (e.g., 15T or 16T). Match the module (1.0M) to your rack specification first, then select teeth count based on your speed-torque requirement.
The bore (F dimension) must match your motor or drive shaft diameter. Common shaft sizes in this series include 4, 5, 6, 6.35, 7, 8, 10, 12, 12.7, 14, and 15 mm. Measure your shaft with calipers before ordering. If your shaft uses a keyway, confirm the bore is large enough to accommodate the key.
F = Bore diameter (the hole through the center, in mm). A = Hub outer diameter (the smaller cylindrical section, in mm). B = Body outer diameter / pitch circle reference diameter (the larger gear body, in mm). Always verify all three dimensions fit your housing and shaft before ordering.
Yes. These pinions are manufactured to the ISO 1.0 module standard with a 20° pressure angle involute tooth profile, which is the most widely used standard for 1M rack-and-pinion systems. They will mesh correctly with any compliant 1M rack from other suppliers as long as the module and pressure angle match.
The gears are made from carbon steel with a zinc-plated surface finish, which provides moderate corrosion resistance suitable for indoor automation environments. For outdoor or high-humidity applications, consider applying a light machine oil or grease to the tooth surfaces and bore. They are not recommended for direct water immersion or highly corrosive chemical environments without additional protection.
Yes, this is one of the most common use cases. Select the teeth count that gives your desired travel-per-revolution (travel = π × module × teeth count per revolution), then match the bore to your stepper or servo motor shaft. Pair with a standard 1M steel or aluminum rack for a complete linear drive system.
A standard dual-axis gantry (X and Y) typically requires 2 pinions minimum — one per axis. If your gantry uses a dual-drive X-axis (two motors driving both sides), you will need 3 pinions total. Ordering a pack of 3 or 5 is recommended to have spares on hand for maintenance or future builds.
