1 Mod 10-19 Teeth Spur Gears Transmission Gear With Step Motor Pinion Gears

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1 Mod 10-19 Teeth Spur Gears Transmission Gear With Step Motor Pinion Gears

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Choose Model: 1M 10T

Bore: 4mm

Packing Quantity: 1 pcs

Price:

$9.37 USD

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In stock (500 units), ready to be shipped

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1 Mod 10–19 Teeth Spur Gears — Reliable Transmission for Stepper Motor and DIY Automation Builds

When your stepper motor project stalls because of a mismatched or undersized pinion gear, every iteration costs time and money. Hobbyists, makers, and small-workshop engineers building CNC routers, 3D printer extruders, robotic arms, or conveyor prototypes need a spur gear that fits precisely, transfers torque cleanly, and holds up through thousands of duty cycles without play or premature wear.

These 1 Mod spur gears are offered in tooth counts from 10T to 19T and three material grades: standard aluminum alloy, blue nylon (lightweight and low-noise), and stainless steel (corrosion-resistant). Bore options span 4 mm through 35 mm (approximately 0.16 in to 1.38 in), with select variants featuring stepped or keyed bores for shaft-locking applications. Tooth thickness on wide-body variants is 12 mm (approx. 0.47 in), and standard tooth width is typically 10–15 mm depending on the model selected.

Typical use cases include stepper motor pinion drives in desktop CNC machines, gear-reduction stages in DIY robotics and automation rigs, and replacement transmission gears in small educational or lab equipment. Long-tail applications such as "1 mod 15T stainless steel spur gear for NEMA 17" or "blue nylon pinion gear 5mm bore" are covered across the variant matrix.

⚙️ Compatibility: Designed for 1 Module (Mod 1) gear systems. Mates with any Mod 1 rack, pinion, or mating gear. Verify bore diameter matches your motor shaft before ordering.

✅ Key Features of These 1 Mod Spur Gears

🔩Wide Tooth Count Range (10T–19T) — Eight tooth-count options let you dial in the exact gear ratio your drive system requires without custom machining.
🧱Three Material Grades — Aluminum alloy for general-purpose use, blue nylon for quiet low-load applications, and stainless steel for corrosion-resistant or food-adjacent environments.
📐Multiple Bore Sizes — Standard round bores from 4 mm to 35 mm, plus stepped and keyed bore variants (e.g., 5×4.5 mm, 8×7 mm) for positive shaft engagement without set screws.
⚡Mod 1 Standard Tooth Profile — Fully interchangeable with any Mod 1 rack or mating gear, ensuring drop-in compatibility across common DIY and industrial automation platforms.
📦Single or 5-Pack Quantities — Order one piece for prototyping or a 5-pack for production runs and spares inventory at a reduced per-unit cost.
🔧Stepped & Wide-Body Variants — Select models include a 12 mm tooth thickness or a stepped hub (e.g., 10 mm bore, 16 mm step) for applications requiring extended engagement length or shaft shoulder seating.

📐 Technical Specifications — 1 Mod Spur Gears

Module	1 (Mod 1)
Tooth Count Options	10T, 12T, 14T, 15T, 16T, 17T, 18T, 19T
Material Options	Aluminum Alloy / Blue Nylon / Stainless Steel
Bore Diameter Range	4 mm – 35 mm (see variant options)
Bore Style	Round, Stepped, or Keyed (see variant options)
Standard Tooth Width	Typically 10–15 mm (see variant options)
Wide-Body Tooth Thickness	12 mm (select variants)
Pressure Angle	20° (standard Mod 1)
Packing Quantity	1 pcs or 5 pcs (see variant options)
Application	Stepper motor pinion, CNC drive, robotics, automation

❓ Frequently Asked Questions

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

Tooth count determines your gear ratio. Divide the tooth count of the driven gear by the tooth count of the driving (pinion) gear to get the ratio. For example, pairing a 10T pinion with a 50T gear gives a 5:1 reduction. Lower tooth counts on the pinion produce higher torque multiplication; higher tooth counts reduce speed reduction. Match the module (Mod 1) of both gears to ensure proper meshing.

What is the difference between the aluminum, blue nylon, and stainless steel versions?

Aluminum alloy gears offer a good balance of strength and weight for general-purpose CNC and robotics use. Blue nylon gears are lighter, run quieter, and are self-lubricating — ideal for low-load, noise-sensitive applications. Stainless steel gears provide superior corrosion resistance and higher load capacity, suited for humid environments or applications requiring longer service life under stress.

What bore size should I select for my stepper motor shaft?

Measure your motor shaft diameter with a caliper before ordering. Common NEMA 17 stepper motors use a 5 mm shaft; NEMA 23 motors typically use an 8 mm shaft. Select the bore that matches your shaft diameter. For a positive lock without a set screw, choose a keyed or stepped bore variant (e.g., 5×4.5 mm or 8×7 mm) that matches your shaft's flat or shoulder profile.

Are these gears compatible with Mod 1 racks and other Mod 1 gears?

Yes. All gears in this listing follow the Mod 1 (1 mm module) standard tooth profile with a 20° pressure angle. They will mesh correctly with any other Mod 1 rack, pinion, or spur gear regardless of brand, as long as the module and pressure angle match. Do not mix with Mod 0.8 or Mod 1.25 gears — the tooth profiles are not interchangeable.

How strong are these gears under continuous load?

Load capacity depends on the material selected. Stainless steel variants offer the highest tensile strength and are suitable for moderate continuous loads. Aluminum alloy gears handle typical CNC and robotics duty cycles well. Blue nylon gears are best suited for light-duty or intermittent loads. For precise load ratings, contact us with your application details — torque, RPM, and duty cycle — and we can advise on the appropriate material grade.

Do the stainless steel gears resist rust and corrosion?

Yes. The stainless steel variants are made from corrosion-resistant stainless steel alloy, making them suitable for humid environments, light washdown applications, or installations where condensation is a concern. They do not require additional surface coating or lubrication for corrosion protection, though applying a light machine oil will extend tooth life under load.

Can I order a 5-pack for a lower per-unit price?

Yes. Each model and bore combination is available in both a 1-piece and a 5-piece pack. The 5-pack option is priced at a lower per-unit cost and is ideal for production builds, spare parts inventory, or classroom/lab kits. Select your preferred packing quantity in the "Packing Quantity" option above before adding to cart.

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