V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm
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V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mmV Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm

V Grooved Pulley PU Round Belt Pulleys Aluminum For 10mm Width Belt OD 40-100mm

HomeDIYer
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By HomeDIYer®

Price:
$10.68 USD
Stock:
In stock (500 units), ready to be shipped

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Description

V Groove Aluminum Round Belt Pulleys — Precision Power Transmission for DIY Automation

When your DIY automation project demands reliable, slip-free power transmission, a mismatched or poorly machined pulley becomes the weakest link in the entire drive system. Whether you are building a 3D printer, a small conveyor, or a custom CNC machine, these V groove aluminum round belt pulleys are engineered to deliver consistent, low-vibration performance across a wide range of bore and diameter configurations.

Each pulley is machined from aluminum alloy, offering a lightweight yet rigid construction. The V-groove profile is designed specifically for 10mm-wide round PU belts, ensuring a secure, centered grip that minimizes belt wander and slippage. Outer diameter (OD) options span 40mm to 100mm (approximately 1.57" to 3.94"), and bore diameter options range from 8mm to 32mm (approximately 0.31" to 1.26"), covering the most common shaft sizes used in maker and light industrial applications.

These pulleys are well-suited for DIY belt-driven 3D printer axes, small conveyor belt systems in maker labs, light-duty automation rigs using round PU belts, and educational robotics platforms requiring adjustable gear ratios. The broad OD-to-bore combination matrix lets you dial in the exact speed ratio your project requires without custom machining.

⚙️ Compatibility: Designed for 10mm-wide round PU belts. Verify your shaft diameter matches the selected bore size before ordering.

✅ Key Features of These V Groove Aluminum Round Belt Pulleys

  • 🔩 Aluminum Alloy Construction
    Machined from aluminum alloy for a lightweight, corrosion-resistant body that reduces rotational inertia without sacrificing structural rigidity in continuous-duty applications.
  • 📐 Wide OD Range: 40–100mm
    Four outer diameter options (40mm / 60mm / 80mm / 100mm) let you configure the drive ratio precisely, from compact high-speed setups to larger torque-multiplying arrangements.
  • 🎯 Broad Bore Selection: 8–32mm
    Seventeen bore diameter options from 8mm to 32mm accommodate the most common shaft sizes found in stepper motors, servo motors, and standard round stock used in DIY builds.
  • 🔄 V-Groove Profile for 10mm Round Belts
    The precisely machined V-groove seats a 10mm-wide round PU belt securely, maintaining belt alignment and reducing lateral drift during high-cycle operation.
  • ⚖️ Low Vibration, Smooth Running
    Balanced machining tolerances minimize runout and vibration, which is critical for print quality in 3D printers and positional accuracy in light CNC or conveyor systems.
  • 🛠️ Drop-In Fit for Standard Shafts
    Bore diameters are machined to standard metric dimensions, allowing direct mounting onto motor shafts or round stock without additional boring or reaming in most cases.

📐 Technical Specifications — V Groove Round Belt Pulley

Product Type Single V-Groove Round Belt Pulley
Material Aluminum Alloy
Belt Type Compatibility 10mm Wide Round PU Belt
Outer Diameter (OD) 40mm / 60mm / 80mm / 100mm (1.57" / 2.36" / 3.15" / 3.94")
Bore Diameter 8mm – 32mm (0.31" – 1.26") — See variant options
Groove Width 10mm
Surface Finish See variant options
Hub / Keyway See variant options
Set Screw See variant options
Weight See variant options
Quantity per Order 1 Piece

❓ Frequently Asked Questions

Which belt type is compatible with these pulleys?

These pulleys are designed specifically for 10mm-wide round PU (polyurethane) belts. The V-groove profile seats the round belt securely to prevent lateral drift. They are not intended for flat belts, timing belts, or V-belts of different widths.

How do I choose the right bore diameter for my motor shaft?

Measure your motor or drive shaft diameter with a caliper. Then select the bore option that matches exactly — for example, a NEMA 17 stepper motor typically has a 5mm shaft, while larger servo motors may use 8mm, 10mm, or 12mm shafts. If your shaft size is not listed, contact us to confirm availability.

What OD should I choose for my application?

The outer diameter determines your drive ratio when paired with a second pulley. A smaller OD (e.g., 40mm) on the motor side and a larger OD (e.g., 100mm) on the driven side will reduce speed and increase torque. For direct-drive or 1:1 setups, use matching ODs on both sides. Choose based on the speed and torque requirements of your specific project.

Are these pulleys strong enough for continuous-duty use?

The aluminum alloy construction provides a solid strength-to-weight ratio suitable for light to medium-duty continuous operation, such as 3D printer axes, small conveyors, and educational robotics. For heavy industrial loads or high-shock applications, verify the load rating against your system requirements before use.

Do these pulleys resist corrosion?

Aluminum alloy offers inherent corrosion resistance in typical indoor environments. For applications exposed to moisture, mild chemicals, or outdoor conditions, consider applying a compatible protective coating or anodizing treatment. The base aluminum material will not rust, but surface oxidation may occur over time in harsh environments.

Can I use these pulleys with a timing belt or flat belt instead of a round belt?

No. The V-groove profile on these pulleys is specifically shaped for round PU belts. Using a flat belt or timing belt would result in poor seating, belt slippage, and accelerated wear on both the belt and the pulley groove. For timing belt applications, please look for our GT2 or HTD timing pulleys.

Is a set screw or keyway included for shaft fixation?

Set screw and keyway availability varies by variant. Please refer to the variant options or contact us to confirm the fixation method for your selected OD and bore combination before ordering.

What is the quantity per order?

Each order includes 1 piece (1Pcs) of the selected pulley variant. If you need multiple pulleys for a dual-shaft or multi-axis setup, simply adjust the quantity at checkout.

🛒 Select your OD and Bore Diameter above, then add to cart.

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