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When your motion system demands repeatable, low-backlash power transfer, an undersized or mismatched gear becomes the weakest link in the chain. Engineers, robotics builders, and serious hobbyists who need a reliable 1.5 module spur gear with flexible bore and tooth-count options will find this pinion a direct fit for a wide range of drive configurations.
Each gear is machined to a 1.5 module standard with a circular pitch of 4.71 mm (≈ 0.185 in). Bore options span 6 mm, 8 mm, 10 mm, 12 mm, and 15 mm to accommodate common shaft diameters, while tooth counts run from 10T through 60T — covering compact high-speed pinions up to larger reduction stages. Outer diameter scales proportionally with tooth count, ranging from approximately 18 mm (10T) to 93 mm (60T).
Typical use cases include 3D printer extruder and axis drives requiring a compact 1.5 mod spur gear, CNC router and laser-cutter feed-axis assemblies where a 10–60 tooth pinion gear controls linear motion, and custom robotics gearboxes where a bore 6–15 mm spur gear must mate with a standard motor shaft without additional machining.
| Module | 1.5 |
|---|---|
| Circular Pitch | 4.71 mm (≈ 0.185 in) |
| Tooth Count Range | 10T – 60T (see variant options) |
| Bore Diameter Options | 6 mm / 8 mm / 10 mm / 12 mm / 15 mm |
| Outer Diameter (approx.) | ~18 mm (10T) to ~93 mm (60T) |
| Pressure Angle | 20° (standard involute) |
| Material | See variant options |
| Face Width | See variant options |
| Hub Style | See variant options |
| Gear Type | Spur (parallel axis) |
| Mesh Compatibility | Mod 1.5 spur gears and racks only |
| Quantity per Order | 1 piece (default); multi-pack available |
Tooth count determines your gear ratio. Divide the driven gear's tooth count by the driving gear's tooth count to get the ratio. For example, a 10T pinion driving a 30T gear gives a 3:1 reduction. Select a smaller tooth count for higher speed output and a larger tooth count for higher torque output at lower speed.
Measure your motor or drive shaft diameter precisely with calipers. Choose the bore that matches your shaft — available in 6 mm, 8 mm, 10 mm, 12 mm, and 15 mm. A bore that is too large will require a bushing or set-screw collar; a bore that is too small cannot be installed without machining.
Yes — any gear or rack marked as Module 1.5 (Mod 1.5) will mesh correctly with this pinion, provided the pressure angle is also 20°. Do not attempt to mesh with Mod 1.0, Mod 2.0, or imperial diametral pitch (DP) gears, as the tooth profiles are incompatible and will cause rapid wear or binding.
Load capacity depends on material, face width, operating speed, and lubrication. For continuous-duty applications, ensure the gear is properly lubricated and that the transmitted torque stays within the material's rated bending and contact stress limits. Contact us to confirm material specifications if your application involves sustained high loads.
Corrosion resistance depends on the material of the specific variant. Metal variants may require periodic lubrication or a protective coating in humid or outdoor environments. If corrosion resistance is critical, contact us to confirm the material finish before ordering.
Yes. The 1.5 module standard is widely used in 3D printer extruder drives, Z-axis lead screw couplings, and CNC router feed axes. Select the tooth count and bore that match your existing drivetrain components. The 10T–16T range is most common for compact extruder pinions, while larger tooth counts suit rack-and-pinion linear motion stages.
Module (mm) and diametral pitch (DP, teeth per inch) are both ways to describe gear tooth size, but they use different unit systems and are not interchangeable. Module 1.5 is a metric standard. To convert approximately: DP ≈ 25.4 ÷ Module, so Mod 1.5 ≈ 16.9 DP. Always verify compatibility using the module value, not DP, when sourcing mating gears.
