Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision
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Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm PrecisionBrass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision

Brass Spur Gear Module 1 with Hub 15-50 Tooth Motor Pinion Bore 4-12mm Precision

HomeDIYer
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By HomeDIYer®

Price:
$9.45 USD
Stock:
In stock (500 units), ready to be shipped

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Description

Brass Module 1 Spur Gear with Hub — Precision Pinion for Motors & Drives

When a mismatched gear bore or imprecise tooth count causes slippage, vibration, or premature wear in your drive train, the entire mechanism suffers. Engineers, robotics builders, and DIY automation enthusiasts need a reliable module 1 spur gear with hub that fits their motor shaft exactly — without custom machining or guesswork.

This brass spur gear is machined to Module 1 (1mm pitch) standards, featuring an integrated hub for secure shaft mounting. The tooth range spans 15 to 50 teeth, and bore sizes run from 4 mm (~0.16 in) to 12 mm (~0.47 in), covering the most common small motor shaft diameters. The brass construction provides good machinability, moderate corrosion resistance, and low magnetic interference.

Typical applications include small DC motor pinion drives in robotics and automation rigs, CNC axis drives requiring precise gear ratios, and educational or prototyping platforms where a brass module 1 spur gear with hub offers easy modification and reliable meshing with standard module 1 racks or mating gears.

⚙️ Compatible with all standard Module 1 spur gears, racks, and pinions. Verify shaft diameter before ordering — bore sizes available: 4 / 5 / 6 / 7 / 8 / 10 / 12 mm.

✅ Key Features of These Brass Module 1 Spur Gears with Hub

🔩Integrated Hub Design

The extended hub provides a longer shaft engagement surface, reducing wobble and improving torque transfer compared to hubless gears — ideal for motor pinion applications.

🟡Brass Construction

Brass offers good machinability, low magnetic permeability, and moderate corrosion resistance — well-suited for indoor automation, robotics, and instrumentation drives.

📐Module 1 Precision Tooth Profile

Machined to Module 1 (1 mm/tooth pitch) standards, ensuring smooth, low-backlash meshing with any standard M1 mating gear, rack, or pinion.

🎯Wide Tooth & Bore Selection

Choose from 15 to 50 teeth and bore diameters of 4–12 mm to match your exact motor shaft and gear ratio requirements without additional machining.

⚖️Balanced Weight-to-Strength Ratio

Brass density provides enough mass for stable inertia in low-speed drives while remaining lightweight enough for compact robotic joints and small actuators.

🔄Versatile Drive Compatibility

Works with standard Module 1 gear trains, worm gear outputs, and rack-and-pinion systems — suitable for CNC, 3D printer extruder drives, and educational robotics kits.

📐 Technical Specifications — Brass Module 1 Spur Gear

Material Brass
Module 1 (1 mm pitch)
Tooth Count 15 / 16 / 18 / 20 / 22 / 24 / 25 / 28 / 30 / 40 / 50
Bore Diameter 4 / 5 / 6 / 7 / 8 / 10 / 12 mm (0.16–0.47 in)
Hub Integrated (with hub)
Pressure Angle 20°
Pitch Diameter See variant options (= Module × Teeth)
Face Width See variant options
Tooth Profile Involute
Finish Natural brass (uncoated)
Quantity 1 pcs per order

❓ Frequently Asked Questions

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

The tooth count determines your gear ratio. Divide the driven gear teeth by the driving gear teeth to get the ratio. For a 2:1 reduction, pair a 30-tooth gear with a 15-tooth pinion. Select the tooth count that achieves your target RPM or torque output based on your motor specs.

What bore size should I order for my motor shaft?

Measure your motor shaft diameter with calipers. Available bores are 4, 5, 6, 7, 8, 10, and 12 mm. Choose the bore that matches your shaft exactly. If you need a keyway or set-screw hole, check whether the hub wall thickness at your chosen bore allows for it — contact us to confirm for smaller bores.

Is brass strong enough for my drive application?

Brass module 1 spur gears are well-suited for light-to-medium duty drives — robotics, instrumentation, 3D printers, and small CNC axes. For heavy-load or high-shock applications, consider steel gears instead. Brass excels where low noise, machinability, and non-magnetic properties are priorities.

How corrosion-resistant is brass for outdoor or humid environments?

Brass has moderate natural corrosion resistance and performs well in indoor and mildly humid environments. For outdoor or marine exposure, consider applying a light grease or protective coating, or opt for stainless steel gears for extended outdoor service.

Will this gear mesh with my existing Module 1 rack or gear?

Yes — as long as your existing rack or mating gear is also Module 1 with a 20° pressure angle (the most common standard), these gears will mesh correctly. Always verify the module and pressure angle of your existing components before ordering.

Can I modify the bore size myself after purchase?

Brass is highly machinable, so the bore can be enlarged with a drill press or lathe if needed. However, enlarging beyond the hub wall limits will compromise structural integrity. We recommend ordering the closest available bore size to your shaft diameter to avoid unnecessary material removal.

What is the difference between this gear and a hubless spur gear?

The integrated hub extends the shaft engagement length beyond the gear face width, providing better axial stability and torque transfer. Hubless gears rely solely on the face width for shaft contact, which can lead to wobble under load. Hub gears are preferred for motor pinion and direct-drive applications.

🛒 Select your tooth count and bore size above, then add to cart.

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