Cast Iron Drive Pulley Double Groove 2A Flat For A/V Belt Pulley OD 60mm-180mm

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Sale price$41.87 USD
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In stock (500 units), ready to be shipped

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Description

Cast Iron Double Groove 2A V-Belt Pulley — Reliable Power Transmission from OD 60mm to 180mm

When a slipping or mismatched pulley is costing you downtime on your motor, compressor, or workshop machine, you need a cast iron drive pulley that holds its groove geometry under load. These double groove 2A flat pulleys are designed for makers, small workshops, and industrial maintenance teams who need a dependable mechanical power transmission component without over-engineering the solution.

Each cast iron double groove 2A V-belt pulley is machined from grey cast iron for rigidity and vibration damping. The double-groove (2A) profile is cut to accept standard A-section V-belts. Outer diameters span 60mm to 180mm (~2.36" to 7.09"), with bore sizes ranging from 12mm to 42mm (~0.47" to 1.65") depending on the selected variant. Hub widths range from 4mm to 14mm across the size range.

Typical use cases include electric motor drive systems for air compressors and dust collectors, line-shaft power transmission in small CNC or woodworking setups, and replacement pulleys for agricultural or industrial equipment using A-section V-belt drives.

⚙️ Compatibility: Fits standard A-section (A/V) V-belts. Double groove (2A) profile. Verify OD, bore diameter, and hub width against your shaft and belt specifications before ordering.

✅ Key Features of These Cast Iron Double Groove 2A V-Belt Pulleys

🔩 Double Groove 2A Profile

Two A-section V-belt grooves allow dual-belt drive configurations for higher torque transmission or redundancy in demanding applications.

🏗️ Grey Cast Iron Construction

Cast iron provides excellent rigidity, natural vibration damping, and resistance to deformation under sustained belt tension — suited for continuous-duty drive systems.

📐 Wide Size Range: OD 60mm–180mm

113 size variants spanning OD 60mm to 180mm with bore diameters from 12mm to 42mm, covering a broad range of motor shaft and drive ratio requirements.

⚖️ Machined Groove Geometry

Grooves are machined to A-section V-belt standards, ensuring consistent belt seating, reduced slippage, and even load distribution across both grooves.

🔄 Flat Hub Face for Secure Mounting

The flat hub design accommodates standard keyway and set-screw shaft mounting methods, compatible with common motor shaft configurations.

🛠️ Drop-In Replacement Compatibility

Dimensioned to match common 2A pulley standards, making these suitable as direct replacements on compressors, fans, pumps, and general-purpose drive systems.

📐 Technical Specifications — Cast Iron 2A V-Belt Drive Pulley

Product Type Double Groove 2A Flat Belt Pulley
Material Grey Cast Iron
Belt Section Compatibility A-section V-belt (A/V belt)
Number of Grooves 2 (Double Groove)
Outer Diameter (OD) Range 60mm – 180mm (2.36" – 7.09")
Bore Diameter Range 12mm – 42mm (0.47" – 1.65") — See variant options
Hub Width Range 4mm – 14mm — See variant options
Surface Finish See variant options
Mounting Method Keyway / Set Screw (See variant options)
Weight See variant options
Packing Quantity 1 piece per unit

❓ Frequently Asked Questions

How do I choose the right OD and bore size for my application?

Match the outer diameter (OD) to your required drive ratio — larger OD on the driven pulley relative to the driver pulley reduces output speed. The bore diameter must match your motor or shaft diameter. Check your existing pulley or shaft spec plate before selecting a variant. Hub width should also clear any shaft shoulders or collars.

What V-belt section do these pulleys accept?

These pulleys are machined for A-section V-belts (also referred to as A/V belts). Do not use B-section or other belt profiles — incorrect belt section will cause premature wear and reduced power transmission efficiency.

Can I use only one belt groove instead of both?

Yes. While the pulley has two grooves, you can run a single A-section belt in one groove. Running dual belts is recommended for higher torque loads to distribute tension evenly and extend belt life.

How strong is cast iron for belt drive applications?

Grey cast iron is a well-established material for pulley manufacturing. It offers high compressive strength, good machinability, and natural vibration damping — making it suitable for continuous-duty motor and compressor drive systems. It is not recommended for impact-heavy or shock-load environments where ductile iron or steel would be preferred.

Will these pulleys corrode if used in a damp workshop environment?

Cast iron is susceptible to surface rust in humid or wet conditions. For damp environments, apply a light coat of machine oil or anti-rust spray to exposed surfaces. The grooves themselves should remain clean and dry for optimal belt grip.

Are these compatible with standard motor shaft keyways?

These pulleys are designed for keyway and set-screw shaft mounting, which is standard on most electric motors. Confirm the bore diameter matches your shaft and that your shaft has a compatible keyway slot. Keyway dimensions vary by bore size — contact us to confirm if you need specific keyway specs for your variant.

What is the difference between the 60mm and 180mm OD variants in terms of speed reduction?

The speed ratio between driver and driven pulleys is determined by the ratio of their ODs. For example, a 60mm driver pulley paired with a 180mm driven pulley gives a 3:1 speed reduction (the driven shaft runs at one-third the motor speed). Select your OD combination based on your required output RPM and motor speed.

🛒 Select your size (OD × bore × hub width) above, then add to cart.

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