Mod 1.5 Worm Gear Wheel Brass Stainless 20 Tooth Worm Shaft 45# Steel Precision

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Mod 1.5 Worm Gear Wheel Brass Stainless 20 Tooth Worm Shaft 45# Steel Precision

Name: Mod 1.5 Worm Gear Wheel Brass Stainless 20 Tooth Worm Shaft 45# Steel Precision
Brand: HomeDIYer
Price: 37.47 USD
Availability: InStock

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By HomeDIYer®

Types: 1.5 Mod - 20 Teeth Worm Gear

Bore: 10 mm Stainless Steel

Material & Amount: Stainless Steel & 1 PCS

Price:

$37.47 USD

Stock:

In stock (500 units), ready to be shipped

Quantity:

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Mod 1.5 Worm Gear & Worm Shaft Set — Precision Drive Components for Robotics and Automation

Engineers and makers who build speed-reduction drives know the frustration of sourcing matched worm gear pairs that hold tight tolerances across the full bore range. Whether you are designing a compact actuator, a motorized camera slider, or a small conveyor, mismatched modules or sloppy bore fits waste hours of rework. This Mod 1.5 worm gear and worm shaft set is machined to consistent module standards so the gear and shaft mesh correctly right out of the package.

The set is available in three gear materials — brass, stainless steel, and 45# steel — paired with worm shafts in A-type, B-type, and C-type configurations. The worm gear wheel features 20 teeth at Module 1.5, with bore diameters ranging from 8 mm to 15 mm (approximately 0.31 in to 0.59 in). Keyway options (3 × 1.4 mm, 4 × 1.8 mm, and 5 × 2.3 mm) are available on selected bore sizes for positive shaft locking. Quantities from 1 to 10 pieces per order are supported.

Typical applications include DIY worm-drive gearboxes for 3D printer extruder upgrades, small robotic joint actuators requiring high reduction ratios, motorized valve actuators in light industrial equipment, and hobbyist CNC rotary-axis builds where a compact worm drive replaces a belt stage.

⚙️ Compatibility: Module 1.5 standard. Worm gear and worm shaft are designed as a matched pair. Confirm bore diameter and keyway dimensions match your shaft before ordering. Not interchangeable with Mod 1.0 or Mod 2.0 components.

✅ Key Features of These Mod 1.5 Worm Gear & Worm Shaft Components

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Module 1.5, 20-Tooth Worm Gear Wheel
Consistent tooth profile machined to Mod 1.5 standard for reliable mesh with the matched worm shaft. Available in brass and stainless steel.

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Three Worm Shaft Types (A / B / C)
A-type, B-type, and C-type worm rods cover different shaft-end configurations and overall lengths to suit varied gearbox housings and motor coupling arrangements.

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Wide Bore Range: 8–15 mm
Bore options from 8 mm to 15 mm (0.31–0.59 in) with plain or keyway bores. Keyway slots (3 × 1.4 mm, 4 × 1.8 mm, 5 × 2.3 mm) prevent rotational slip under load.

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Material Choice for Your Environment
Brass offers low friction and corrosion resistance for light-load drives. Stainless steel suits humid or washdown environments. 45# steel provides higher tensile strength for moderate-load applications.

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Flexible Quantity Options
Order 1, 2, 3, 5, or 10 pieces per SKU to match prototype or small-batch production needs without overstocking.

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Precision-Machined Mating Surfaces
Gear tooth flanks and shaft thread are machined to consistent tolerances, reducing backlash and supporting smooth, quiet operation in speed-reduction assemblies.

📐 Technical Specifications — Mod 1.5 Worm Gear & Worm Shaft

Module	1.5
Gear Type	Worm Gear Wheel (20 Teeth) / Worm Rod (A, B, C Type)
Number of Teeth (Gear)	20
Gear Material Options	Brass / Stainless Steel
Shaft Material Options	45# Steel
Bore Diameter Range	8 mm – 15 mm (0.31 in – 0.59 in)
Keyway Options	3 × 1.4 mm / 4 × 1.8 mm / 5 × 2.3 mm (bore-dependent)
Worm Shaft Types	A-Type / B-Type / C-Type
Available Quantities	1 / 2 / 3 / 5 / 10 PCS
Gear OD (Approximate)	See variant options
Shaft Length	See variant options
Surface Finish	See variant options

❓ Frequently Asked Questions

How do I choose between the A-Type, B-Type, and C-Type worm shaft?

The three shaft types differ in their end configuration and overall length. A-Type shafts have a plain cylindrical end suitable for direct coupling or set-screw collars. B-Type shafts feature a stepped or extended end for specific housing fits. C-Type shafts are longer and suited to applications where the shaft must span a wider housing. Check your gearbox housing drawing and motor shaft coupling method before selecting a type.

Do I need a keyway bore, or is a plain bore sufficient?

A plain bore relies on a set screw or interference fit to transmit torque. For higher-torque or reversing-load applications, a keyway bore with a matching key provides a positive mechanical lock that prevents the gear from spinning on the shaft. If your application involves frequent direction changes or significant load, select a keyway bore option.

Will this worm gear mesh with a Mod 1.0 or Mod 2.0 worm shaft?

No. Module 1.5 gears are only compatible with Module 1.5 worm shafts. Mixing modules results in incorrect tooth engagement, accelerated wear, and potential failure. Always confirm that both the gear wheel and the worm shaft share the same module value.

Which material should I choose for a corrosion-resistant application?

For environments with moisture, mild chemicals, or occasional washdown, the stainless steel worm gear wheel is the most corrosion-resistant option in this range. Brass also offers good corrosion resistance and is a common choice for light-load drives in humid conditions. The 45# steel worm shaft is not inherently corrosion-resistant and may require a protective coating in wet environments.

What is the load capacity of this worm gear set?

Load capacity depends on material, bore size, lubrication, and operating speed. Brass gears are suited to light-to-moderate loads at lower speeds. Stainless steel gears handle similar loads with better corrosion resistance. 45# steel shafts provide higher tensile strength for moderate-load drives. For specific torque ratings, contact us with your application details so we can confirm suitability.

Can I order a matched gear and shaft pair together?

Yes. Select the worm gear wheel variant (20 Teeth, your preferred bore and material) and the worm shaft variant (A, B, or C Type, your preferred bore and material) separately and add both to your cart. Both are Module 1.5 and are designed to mesh as a matched pair.

What keyway size corresponds to which bore diameter?

Based on the available variants: 8 mm bore uses a 3 × 1.4 mm keyway; 10 mm bore uses either a 3 × 1.4 mm or 4 × 1.8 mm keyway depending on the variant; 12 mm bore uses a 4 × 1.8 mm keyway; 14 mm and 15 mm bores use a 5 × 2.3 mm keyway. Plain (no keyway) options are also available for 8 mm, 10 mm, 12 mm, 14 mm, and 15 mm bores.

🛒 Select your Type, Bore, and Material & Amount above, then add to cart.