V-Belt Pulley Motor Pulleys Hollow 5-8mm Discs Dia Ø100-300mm For 1A Type Belts

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V-Belt Pulley Motor Pulleys Hollow 5-8mm Discs Dia Ø100-300mm For 1A Type Belts

Name: V-Belt Pulley Motor Pulleys Hollow 5-8mm Discs Dia Ø100-300mm For 1A Type Belts
Brand: HomeDIYer
Price: 134.76 USD
Availability: InStock

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Sizes: 100mm x 15mm x 5mm

Packing Quantity (Pcs): 1

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$134.76 USD

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In stock (500 units), ready to be shipped

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V-Belt Pulley Motor Pulleys — Precision Hollow Bore Discs for 1A Type Belt Drives

When a mismatched or worn pulley causes belt slip, vibration, or premature drive failure, engineers and makers need a reliable drop-in replacement they can trust. These V-belt pulley motor pulleys are designed for builders, maintenance technicians, and DIY automation enthusiasts who demand dimensional accuracy and consistent belt engagement across a wide range of drive configurations.

Each pulley disc features a hollow bore of 5–8 mm (approximately 0.20–0.31 in) and spans an outer disc diameter range of Ø100–300 mm (approximately 3.94–11.81 in). Groove width varies by size, typically 15–28 mm (0.59–1.10 in), with groove depth of 5–8 mm (0.20–0.31 in), machined to suit standard 1A type V-belt profiles. The three-dimension format shown in variants — Length × Width × Depth — corresponds to the disc outer diameter, groove width, and groove depth respectively.

These V-belt pulleys are well suited for small electric motor drives in workshop machinery, conveyor belt systems requiring precise speed reduction, and CNC or robotics projects where a compact 1A-profile belt drive is needed. Long-tail applications include single-groove motor pulley replacement, hollow bore pulley for shaft mounting, and 1A V-belt drive pulley for DIY automation.

⚙️ Compatibility: Designed for standard 1A type V-belts. Verify your belt cross-section (A-profile / 1A) and required bore diameter before ordering. Bore size is 5–8 mm; confirm shaft diameter matches your selected variant.

✅ Key Features of These V-Belt Pulley Motor Pulleys

🔩 Wide Size Range

Available in outer diameters from Ø100 mm to Ø300 mm (3.94–11.81 in), covering a broad spectrum of speed-ratio and torque requirements in a single product line.

🕳️ Hollow Bore Design

5–8 mm hollow bore allows direct shaft mounting without additional adapters, simplifying installation on small motor shafts and spindles.

📐 1A Belt Profile Groove

Groove geometry is machined to match the 1A (A-section) V-belt standard, ensuring consistent belt seating, reduced slip, and extended belt life.

⚖️ Balanced Disc Construction

Disc-style body with uniform wall section minimises rotational imbalance at operating speeds, reducing vibration in sensitive drive applications.

🔧 Versatile Application Fit

Suitable for electric motors, bench grinders, conveyor drives, fan assemblies, and light CNC or robotics belt-drive systems requiring a compact 1A pulley.

📦 Sold Individually

Each listing is for one pulley disc. Select your exact outer diameter and groove dimension from the variant options to get precisely the size your project requires.

📐 Technical Specifications — V-Belt Pulley Motor Pulleys

Belt Type Compatibility	1A (A-section) V-belt
Outer Disc Diameter (OD)	Ø100 mm – Ø300 mm (3.94 in – 11.81 in)
Bore Diameter	5 mm – 8 mm (0.20 in – 0.31 in)
Groove Width	15 mm – 28 mm (0.59 in – 1.10 in) — see variant options
Groove Depth	5 mm – 8 mm (0.20 in – 0.31 in) — see variant options
Number of Grooves	1 (single groove)
Groove Profile	1A / A-section V-groove
Material	See variant options
Surface Finish	See variant options
Mounting Style	Hollow bore, direct shaft mount
Quantity per Pack	1 piece
Weight	See variant options

❓ Frequently Asked Questions

How do I choose the right pulley size for my motor?

Measure your motor shaft diameter first — it must fall within the 5–8 mm bore range of these pulleys. Then calculate the required speed ratio: divide the motor RPM by the desired output RPM to get the pulley diameter ratio. Select the outer diameter (Ø100–300 mm) that gives you the correct ratio when paired with your driven pulley. Always verify the 1A belt profile matches your existing or replacement belt.

What does the size format "100mm x 15mm x 5mm" mean in the variant options?

The three numbers represent: outer disc diameter × groove width × groove depth. For example, "100mm x 15mm x 5mm" means the pulley has a 100 mm outer diameter, a 15 mm wide groove, and a 5 mm deep groove. Choose the combination that matches your belt width and the speed ratio your drive system requires.

Are these pulleys strong enough for continuous-duty motor applications?

These disc-style pulleys are designed for light-to-medium duty drive applications typical of small electric motors, bench machinery, and DIY automation. For heavy industrial continuous-duty loads or high-torque applications, please contact us to confirm suitability before ordering.

Will these pulleys resist rust or corrosion in humid environments?

Corrosion resistance depends on the material and surface finish of the specific variant. If your application involves moisture, coolant exposure, or outdoor use, contact us to confirm the finish of your chosen size before purchasing. For demanding environments, consider adding a protective coating after installation.

Can I use these pulleys with B-section or other V-belt profiles?

No — these pulleys are machined specifically for the 1A (A-section) V-belt profile. Using a B-section or other belt profile will result in poor belt seating, accelerated wear, and potential belt ejection under load. Always match the pulley groove profile to your belt cross-section.

Do I need any special tools to mount this pulley on a shaft?

Basic installation requires a shaft that matches the bore diameter (5–8 mm), a suitable key or set screw (if the pulley includes a keyway or set-screw hole — confirm with your variant), and standard hand tools. Ensure the shaft is clean and free of burrs before pressing or sliding the pulley into position. Align the pulley carefully with the mating pulley to avoid belt tracking issues.

How do I decide between a smaller or larger outer diameter?

A larger outer diameter on the driven pulley reduces output speed and increases torque; a smaller diameter increases speed and reduces torque. If you are replacing an existing pulley, match the original OD exactly. If you are designing a new drive, use the formula: Output RPM = Motor RPM × (Driver OD ÷ Driven OD) to select the correct size pair.

🛒 Select your size (outer diameter × groove width × groove depth) above, then add to cart.

V-Belt Pulley Motor Pulleys Hollow 5-8mm Discs Dia Ø100-300mm For 1A Type Belts

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Description

V-Belt Pulley Motor Pulleys — Precision Hollow Bore Discs for 1A Type Belt Drives

✅ Key Features of These V-Belt Pulley Motor Pulleys

📐 Technical Specifications — V-Belt Pulley Motor Pulleys

❓ Frequently Asked Questions

V-Belt Pulley Motor Pulleys Hollow 5-8mm Discs Dia Ø100-300mm For 1A Type Belts

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