3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC
3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC
3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC
3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC
3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC
3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC
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3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC

3 Modul Steel Spur Gears Pinion Gear Thick 30mm 10-60 Teeth For 3D CNC

HomeDIYer
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By HomeDIYer®

Price:
$7.64 USD
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In stock (500 units), ready to be shipped

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Description

Module 3 Steel Spur Gears — Precision Pinion Gears for CNC, 3D Printers & DIY Automation

When your CNC router skips steps or your DIY automation project loses torque because of a worn or undersized gear, the entire build stalls. Makers, workshop engineers, and robotics hobbyists who need a reliable, drop-in steel spur gear with a generous 30 mm face width will find this Module 3 pinion gear series a dependable solution for demanding drive trains.

Each gear is machined from carbon steel with a standard Module 3 (3 mm/tooth pitch) tooth profile. The face (tooth) width is 30 mm (~1.18 in), and the pitch diameter ranges from 30 mm (~1.18 in) for the 10-tooth pinion up to 180 mm (~7.09 in) for the 60-tooth gear. Bore diameter and keyway dimensions vary by tooth count — see variant options for exact bore specs.

These module 3 steel spur gears are well-suited for CNC router Z-axis and rack-and-pinion drives, 3D printer extruder and motion systems requiring a steel spur gear upgrade, and DIY automation conveyor or rotary-table builds where a durable pinion gear with a 30 mm face width is needed for sustained torque transmission.

⚙️ Compatibility: Standard Module 3 (Mod 3) tooth profile — mates with any Module 3 rack, ring gear, or mating spur gear. Confirm bore diameter against your shaft size before ordering.

✅ Key Features of These Module 3 Steel Spur Gears

  • 🔩Carbon Steel Construction — Machined from carbon steel for strength and wear resistance in continuous-duty drive applications.
  • 📐30 mm Face Width — Generous 30 mm (~1.18 in) tooth width distributes load evenly and reduces tooth stress under high torque.
  • ⚙️Standard Module 3 Profile — Fully interchangeable with any Mod 3 rack or mating gear; no custom tooling required.
  • 🎯Wide Tooth-Count Range (10–60 Teeth) — Choose the exact gear ratio you need; 51 variants cover pinion to large-diameter spur gear applications in a single listing.
  • 🔄Precision-Cut Teeth — Hobbed tooth flanks provide smooth meshing, reduced backlash, and quieter operation compared to cast or sintered alternatives.
  • 🛠️Versatile Bore Options — Bore diameter and keyway vary by tooth count; see variant options to match your shaft diameter for a secure, concentric fit.

📐 Technical Specifications — Module 3 Steel Spur Gears

Module (Pitch) 3 (3 mm/tooth)
Tooth Count Range 10 – 60 teeth
Face (Tooth) Width 30 mm (~1.18 in)
Pitch Diameter Range 30 mm – 180 mm (~1.18 in – 7.09 in)
Material Carbon Steel
Tooth Profile Standard involute, Module 3
Pressure Angle 20°
Bore Diameter See variant options
Keyway See variant options
Surface Finish See variant options
Compatible Rack/Gear Module Module 3 (Mod 3)
Typical Application CNC router, 3D printer, DIY automation, robotics

❓ Frequently Asked Questions

How do I choose the right tooth count for my project?

Select your tooth count based on the gear ratio you need. Divide the driven gear teeth by the driving (pinion) gear teeth to get the ratio. For example, pairing a 10-tooth pinion with a 30-tooth gear gives a 3:1 reduction. A smaller tooth count means a smaller pitch diameter and higher speed; a larger tooth count gives a larger diameter and more torque multiplication.

What shaft diameter does this gear fit?

Bore diameter varies by tooth count. Please check the variant detail page or contact us to confirm the bore size for your chosen model before ordering. Measure your shaft diameter with calipers and compare it to the listed bore to ensure a proper fit.

Will this gear mesh with my existing Module 3 rack or gear?

Yes — as long as your existing rack or mating gear is also Module 3 (Mod 3) with a 20° pressure angle, these gears will mesh correctly. Module must match exactly; a Module 2 or Module 4 gear will not mesh properly with a Module 3 counterpart.

How strong are these steel spur gears under load?

Carbon steel spur gears offer significantly higher tensile and shear strength than plastic or aluminum alternatives. The 30 mm face width further distributes tooth load, reducing contact stress. For exact load ratings, refer to standard gear engineering tables for Module 3 carbon steel gears, or contact us with your torque and RPM requirements.

Are these gears corrosion-resistant?

Carbon steel has moderate corrosion resistance. For indoor CNC or 3D printer environments this is typically sufficient. If your application involves moisture, coolant, or outdoor exposure, consider applying a light machine oil or grease to the tooth flanks, or contact us about surface-treated variants.

Can I use these gears in a 3D printer or CNC router?

Yes. These Module 3 steel spur gears are commonly used in CNC router rack-and-pinion drives, extruder gear trains, and rotary-axis builds. Confirm that your existing rack or mating gear is Module 3, and verify the bore diameter matches your motor or drive shaft before ordering.

What is the difference between the 10-tooth and 60-tooth variants?

The 10-tooth variant has a pitch diameter of 30 mm and is used as a small pinion for high-speed, lower-torque applications. The 60-tooth variant has a pitch diameter of 180 mm and is suited for large-diameter driven gears or applications requiring significant torque multiplication. All variants share the same 30 mm face width and Module 3 tooth profile.

🛒 Select your tooth count (Model) above, then add to cart.

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